Description Summary:
OpenEMR is susceptible to an authentication bypass vulnerability involving the OAuth2 password grant flow due to insufficient security controls.

Executive Summary:
A critical authentication bypass vulnerability in OpenEMR allows authenticated users to compromise system integrity, necessitating an immediate update.

Vulnerability Details

CVE-ID: CVE-2026-67611

Affected Software: OpenEMR

Affected Versions: 0 through 8.2.0

Vulnerability: The application is vulnerable to an authentication bypass via the OAuth2 password grant mechanism, categorized as CWE-308 (Use of Single-factor Authentication). While the CVSS vector indicates that low privileges are required, the flaw allows an attacker to manipulate the authentication process to gain unauthorized access or elevated privileges.

Business Impact

This vulnerability carries a CVSS score of 8.1, reflecting a high severity level. Successful exploitation could lead to unauthorized access to sensitive patient health information and clinical records, potentially resulting in severe regulatory non-compliance, heavy financial penalties, and significant reputational damage to healthcare providers.

Remediation Plan

Immediate Action: Upgrade to the latest version of OpenEMR as specified by the vendor to resolve the authentication bypass.

Proactive Monitoring: Monitor authentication logs for unusual login patterns, such as multiple failed attempts or anomalous token requests originating from unexpected service accounts.

Compensating Controls: Implement strict network access controls and ensure that the OpenEMR instance is not exposed directly to the public internet, using a VPN or internal network access only.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of August 4, 2026, there is no confirmed active exploitation in the wild: however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is inherently dangerous due to its impact on the core authentication trust model of the medical record system.

Analyst Recommendation

The high CVSS score of 8.1 and the existence of a proof-of-concept underscore the urgency of this advisory. Administrators must prioritize patching their OpenEMR deployments to prevent potential unauthorized access to protected health data.

Description Summary:
OpenEMR is vulnerable to a missing authentication flaw in its OAuth2 dynamic client registration, allowing unauthorized access to sensitive FHIR resources.

Executive Summary:
A critical authentication bypass in OpenEMR allows unauthenticated attackers to register OAuth2 clients and gain unauthorized access to protected patient data.

Vulnerability Details

CVE-ID: CVE-2026-67610

Affected Software: OpenEMR

Affected Versions: 0 through 8.2.0

Vulnerability: This vulnerability (CWE-306) stems from missing authentication for critical dynamic client registration functions within the OAuth2 implementation. An unauthenticated attacker can register a malicious client, subsequently gaining unauthorized access to FHIR (Fast Healthcare Interoperability Resources) data.

Business Impact

The CVSS score of 8.1 underscores the risk to sensitive medical data. Successful exploitation could lead to massive unauthorized access to Protected Health Information (PHI), resulting in severe regulatory penalties, loss of patient trust, and significant legal liability for healthcare providers utilizing the platform.

Remediation Plan

Immediate Action: Upgrade OpenEMR to the latest version that includes the patched OAuth2 registration logic.

Proactive Monitoring: Review OAuth2 client registration logs for any suspicious or unauthorized applications appearing in the system.

Compensating Controls: Restrict access to the OpenEMR instance by limiting network visibility and employing a Web Application Firewall to block unauthorized registration requests.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of August 4, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly attractive to attackers due to the sensitive nature of the data involved.

Analyst Recommendation

This vulnerability presents a direct risk to patient privacy and regulatory compliance. Healthcare organizations must treat this as an urgent update, ensuring that all OpenEMR instances are patched and that access controls are rigorously audited to prevent unauthorized data exposure.

Description Summary:
OpenEMR contains a remote code execution vulnerability via eval injection in the CategoryTree component, allowing authenticated administrators to execute arbitrary OS commands.

Executive Summary:
A critical remote code execution vulnerability in OpenEMR allows authenticated administrators to execute arbitrary operating system commands via an unsafe eval() call.

Vulnerability Details

CVE-ID: CVE-2026-39932

Affected Software: openemr openemr

Affected Versions: 0 through 8.2.0

Vulnerability: The vulnerability exists in the CategoryTree component, where unsanitized user input is processed through an eval() call. While the vector requires high privileges, the resulting command execution allows an attacker to gain full control over the underlying web server.

Business Impact

The vulnerability allows for full system compromise, enabling attackers to move laterally within the network or access sensitive medical records. Given the sensitivity of data handled by OpenEMR, the 9.1 CVSS score reflects the severe impact of unauthorized code execution.

Remediation Plan

Immediate Action: Update OpenEMR to the latest available version as provided by the vendor.

Proactive Monitoring: Monitor server logs for unexpected execution of system commands or unauthorized modifications to the database structure.

Compensating Controls: Restrict administrative access to the application to trusted internal networks only and utilize host-based intrusion detection systems to monitor for anomalous process spawns.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of Aug 3, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The requirement for administrative privileges slightly mitigates the initial attack surface.

Analyst Recommendation

While this vulnerability requires authenticated access, the ability to execute arbitrary OS commands makes it a high-priority risk. Administrators should apply available vendor patches immediately and restrict administrative interface access to known, secure management networks.

Description Summary:
A broken access control vulnerability in OpenEMR versions up to 8.0.0.3 allows low-privilege users to unauthorizedly access and download sensitive Ensora eRx error logs.

Executive Summary:
A broken access control vulnerability in OpenEMR allows authenticated low-privilege users to exfiltrate sensitive medical error logs, posing a significant risk to patient data confidentiality.

Vulnerability Details

CVE-ID: CVE-2026-34056

Affected Software: OpenEMR

Affected Versions: <= 8.0.0.3

Vulnerability: This vulnerability involves Improper Authorization (CWE-285) and Forced Browsing (CWE-425) mechanisms, enabling an authenticated low-privilege user to bypass access controls and retrieve sensitive system logs.

Business Impact

The compromise of Ensora eRx error logs can lead to the unauthorized disclosure of sensitive medical data, resulting in severe privacy violations and potential regulatory non-compliance. Given the CVSS score of 7.7, this flaw represents a High severity risk that could lead to significant reputational damage and legal liability for healthcare organizations managing patient records.

Remediation Plan

Immediate Action: As no official patch is currently available, administrators should restrict access to the affected directory or disable the eRx error log functionality if not mission-critical.

Proactive Monitoring: Monitor server access logs for anomalous requests directed at eRx log endpoints and investigate any unauthorized attempts by low-privileged user accounts to access administrative or system-level files.

Compensating Controls: Implement Web Application Firewall (WAF) rules to block direct access to log-related endpoints and enforce strict file-level permissions on the server to prevent unauthorized reading of sensitive documents.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of March 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently exploitable because it relies on a lack of server-side authorization checks for direct resource requests.

Analyst Recommendation

This vulnerability presents a high risk to data privacy due to the exposure of sensitive medical information. Organizations using OpenEMR must prioritize monitoring for unauthorized log access and apply a vendor-supplied patch as soon as it is released to close this security gap.

Description Summary:
OpenEMR versions prior to 8.0.0.3 contain an Insecure Direct Object Reference (IDOR) vulnerability in legacy patient note functions, allowing authenticated users to modify or delete unauthorized records.

Executive Summary:
A critical authorization bypass vulnerability in OpenEMR allows authenticated users to manipulate sensitive patient medical records, necessitating an immediate update to version 8.0.0.3.

Vulnerability Details

CVE-ID: CVE-2026-34055

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: The vulnerability is an Insecure Direct Object Reference (CWE-639) located within the library/pnotes.inc.php file. It allows any authenticated user to perform unauthorized update or delete operations on patient notes because the application fails to verify ownership or access permissions for the provided note ID.

Business Impact

The ability for unauthorized users to modify or delete medical records poses a severe risk to patient safety, clinical data integrity, and regulatory compliance. Given the CVSS score of 8.1, this vulnerability represents a high risk of data tampering and loss of confidentiality. Unauthorized manipulation of electronic health records can lead to significant legal liability, reputational damage, and disruption of critical medical services.

Remediation Plan

Immediate Action: Upgrade your OpenEMR deployment to version 8.0.0.3 or later immediately to apply the required authorization checks.

Proactive Monitoring: Review application access logs for unusual patterns of note deletions or modifications that deviate from standard user workflows.

Compensating Controls: While no direct WAF rule can replace the patch, strictly restricting access to the OpenEMR interface to authorized users only via VPN or IP allowlisting can reduce the attack surface.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of March 26, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently exploitable by any authenticated user because the backend functions lack the necessary validation logic to enforce data access boundaries.

Analyst Recommendation

This vulnerability presents a significant risk to the integrity of medical data within the OpenEMR platform. Security teams must prioritize patching to version 8.0.0.3 to remediate the broken access control mechanism. Failure to update leaves clinical records vulnerable to unauthorized tampering by any user with valid system access.

Description Summary:
A stored cross-site scripting (XSS) vulnerability in the OpenEMR CCDA document preview allows authenticated attackers to execute arbitrary JavaScript in a clinician's browser session.

Executive Summary:
A stored cross-site scripting vulnerability in OpenEMR versions prior to 8.0.0.3 allows authenticated attackers to compromise clinician browser sessions via malicious CCDA documents.

Vulnerability Details

CVE-ID: CVE-2026-33932

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: This is a stored cross-site scripting (CWE-79) vulnerability occurring within the CCDA document preview feature. An authenticated attacker with the ability to upload or send a CCDA document can inject malicious JavaScript, which executes when a clinician previews the document due to improper sanitization of the linkHtml element.

Business Impact

The successful exploitation of this vulnerability could lead to unauthorized actions performed on behalf of a clinician, potentially resulting in the theft of sensitive patient data, session hijacking, or unauthorized modifications to electronic health records. With a CVSS score of 7.6, this flaw poses a significant risk to the integrity and confidentiality of medical practice management systems.

Remediation Plan

Immediate Action: Upgrade your OpenEMR installation to version 8.0.0.3 or later to apply the necessary sanitization patch.

Proactive Monitoring: Audit access logs for unusual document upload activity or unexpected script execution patterns within the clinician user interface.

Compensating Controls: Implement a strict Content Security Policy (CSP) to restrict the execution of inline scripts and ensure that only trusted domains can load external resources.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 26, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous in a clinical environment as it targets the trust relationship between the user and the application interface.

Analyst Recommendation

Given that this vulnerability allows for the execution of arbitrary code within the context of a clinician's browser, it represents a high risk to patient data privacy and system security. Organizations currently running OpenEMR versions earlier than 8.0.0.3 should prioritize the immediate application of the vendor-supplied update to eliminate this vector for session and data compromise.

Description Summary:
OpenEMR versions prior to 8.0.0.3 suffer from a missing authorization flaw in the billing file download endpoint, allowing authenticated users to access and delete sensitive medical claim files.

Executive Summary:
A missing authorization vulnerability in OpenEMR allows any authenticated user to unauthorizedly download and delete sensitive electronic claim batch files containing protected health information.

Vulnerability Details

CVE-ID: CVE-2026-33918

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: The billing file-download endpoint at interface/billing/get_claim_file.php fails to perform adequate access control list (ACL) checks, requiring only a valid session and CSRF token. Consequently, any authenticated user, regardless of their role or assigned privileges, can trigger the download and permanent deletion of sensitive electronic claim batches.

Business Impact

The exploitation of this vulnerability poses a significant risk to the confidentiality and integrity of sensitive patient data, leading to potential HIPAA non-compliance and severe regulatory penalties. Given the CVSS score of 7.6, this is classified as a high-severity risk that could result in substantial reputational damage and the loss of sensitive Protected Health Information (PHI) through unauthorized deletion or exfiltration.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0.3 or later immediately to apply the necessary ACL verification logic.

Proactive Monitoring: Review application access logs specifically for frequent or anomalous requests to the interface/billing/get_claim_file.php endpoint, particularly from user accounts that do not require billing access.

Compensating Controls: Implement strict network-level segmentation and restrict access to the billing management modules via internal Role-Based Access Control (RBAC) configurations if an immediate update is not feasible.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of March 26, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The flaw is inherently dangerous due to the ease of execution once a valid user session is obtained, as it bypasses critical business logic intended to protect medical records.

Analyst Recommendation

This vulnerability represents a critical failure in access control that directly exposes Protected Health Information to unauthorized users. Organizations utilizing OpenEMR must prioritize the upgrade to version 8.0.0.3 to ensure that the billing file-download endpoint correctly enforces authorization checks. Failure to remediate this issue leaves the medical practice exposed to data loss and potential legal liability regarding the unauthorized handling of patient records.

Description Summary:
A SQL injection vulnerability in the OpenEMR ajax_save CAMOS form allows authenticated attackers to execute arbitrary SQL commands due to insufficient input validation.

Executive Summary:
A high-severity SQL injection vulnerability in OpenEMR allows authenticated attackers to compromise sensitive medical records and practice management data.

Vulnerability Details

CVE-ID: CVE-2026-33917

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: The vulnerability is a SQL injection (CWE-89) located in the ajax_save page within the CAMOS form. It requires an authenticated user to trigger the flaw, which occurs due to improper neutralization of special elements used in SQL commands.

Business Impact

The exploitation of this vulnerability poses a severe risk to healthcare data integrity and confidentiality. Because OpenEMR manages electronic health records, unauthorized SQL execution could lead to the theft of patient data, modification of medical histories, or complete system compromise. With a CVSS score of 8.8, this flaw represents a significant threat to organizational compliance and patient safety.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0.3 or later immediately to apply the patch for the vulnerable ajax_save function.

Proactive Monitoring: Review application access logs for unusual SQL patterns or unexpected POST requests directed at the ajax_save endpoint.

Compensating Controls: Deploy a Web Application Firewall (WAF) with rules configured to detect and block common SQL injection payloads targeting medical management software.

Exploitation Status

Public Exploit Available: Yes, a public proof-of-concept repository exists on GitHub.

Analyst Notes: As of March 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly exploitable by any authenticated user who has access to the CAMOS form module.

Analyst Recommendation

Given the sensitivity of the data managed by OpenEMR, the risk of SQL injection cannot be overstated. Administrators should prioritize the upgrade to version 8.0.0.3 across all production environments to neutralize this threat. Until updates are applied, restrict access to the affected CAMOS form to authorized personnel only to limit the potential attack surface.

Description Summary:
OpenEMR is vulnerable to an XML External Entity (XXE) injection flaw, allowing authenticated users to read arbitrary files from the server via crafted CCDA documents.

Executive Summary:
OpenEMR versions prior to 8.0.0.3 are vulnerable to arbitrary file disclosure, posing a significant risk to sensitive medical and system data.

Vulnerability Details

CVE-ID: CVE-2026-33913

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: This vulnerability is an Improper Restriction of XML External Entity Reference (CWE-611) located in the Carecoordination module. It allows an authenticated user to perform arbitrary file reads by uploading a specially crafted CCDA document.

Business Impact

Successful exploitation of this vulnerability could lead to the unauthorized disclosure of sensitive configuration files, credentials, or protected health information (PHI) stored on the server. Given the CVSS score of 7.7, this represents a high-severity risk to the confidentiality of the medical practice management environment, potentially leading to regulatory non-compliance and severe reputational damage.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0.3 or later immediately to incorporate the patch addressing the XXE vulnerability.

Proactive Monitoring: Monitor server access logs for anomalous file read requests or unexpected activity originating from the Carecoordination module.

Compensating Controls: Deploy a Web Application Firewall (WAF) configured to inspect XML uploads for malicious external entity references as a temporary protective measure.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of March 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently dangerous because it allows direct server file system access through standard application features.

Analyst Recommendation

The risk associated with this vulnerability is high due to the potential for unauthorized data exfiltration within a healthcare environment. IT administrators should prioritize the upgrade to version 8.0.0.3 to eliminate the underlying flaw, as the existence of a proof-of-concept underscores the need for rapid remediation to prevent potential exploitation.

Description Summary:
OpenEMR versions prior to 8.0.0.3 contain a stored cross-site scripting (XSS) vulnerability in the Eye Exam form, allowing authenticated attackers with specific roles to execute arbitrary JavaScript.

Executive Summary:
A stored cross-site scripting vulnerability in OpenEMR allows authenticated attackers to execute arbitrary JavaScript within the browser sessions of other users.

Vulnerability Details

CVE-ID: CVE-2026-33348

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: The application fails to properly sanitize input within the Eye Exam form functionality. This allows an authenticated attacker possessing the Notes - my encounters role to inject malicious scripts that execute in the context of other users who view the affected patient encounter pages or visit history.

Business Impact

This vulnerability poses a significant risk to the integrity and confidentiality of medical records within OpenEMR. With a CVSS score of 8.7, the flaw enables attackers to perform actions on behalf of other users, potentially leading to unauthorized data modification, account takeover, or the exfiltration of sensitive patient health information.

Remediation Plan

Immediate Action: Upgrade your OpenEMR installation to version 8.0.0.3 or later to apply the necessary security patches.

Proactive Monitoring: Review application access logs for unusual activity associated with user accounts holding the Notes - my encounters role, and monitor for suspicious script execution patterns.

Compensating Controls: Implement a strict Content Security Policy (CSP) to restrict the execution of unauthorized scripts and utilize a Web Application Firewall (WAF) to filter malicious payloads from input fields.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The stored nature of this XSS attack makes it particularly effective for lateral movement within the application.

Analyst Recommendation

Given the High severity and the sensitivity of medical data processed by OpenEMR, organizations must prioritize the update to version 8.0.0.3. Administrators should audit user permissions to ensure the principle of least privilege is enforced, limiting the potential impact of similar vulnerabilities until the patch is successfully applied.

Description Summary:
A stored cross-site scripting (XSS) vulnerability in the OpenEMR patient portal payment flow allows authenticated users to execute arbitrary JavaScript in the context of staff members.

Executive Summary:
OpenEMR versions prior to 8.0.0.2 contain a stored cross-site scripting vulnerability that permits authenticated portal users to compromise staff browser sessions.

Vulnerability Details

CVE-ID: CVE-2026-33346

Affected Software: OpenEMR

Affected Versions: < 8.0.0.2

Vulnerability: This is a stored cross-site scripting (CWE-79) vulnerability located in the patient portal payment flow. An authenticated user can inject malicious JavaScript via the portal/lib/paylib.php script, which is then executed without proper escaping when a staff member views the submission in portal/portal_payment.php.

Business Impact

Successful exploitation allows an attacker to execute arbitrary code within the browser of staff members, potentially leading to session hijacking, unauthorized access to sensitive patient health information, or administrative actions performed on behalf of the staff. With a CVSS score of 8.7, this flaw represents a high risk to data confidentiality and integrity, particularly in clinical environments where staff accounts possess elevated privileges.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0.2 or later to apply the necessary input sanitization fixes.

Proactive Monitoring: Review web server access logs for anomalous requests directed at the patient portal payment modules and monitor for unexpected script execution or unauthorized interactions within staff-facing administrative interfaces.

Compensating Controls: Implement a strict Content Security Policy (CSP) to restrict the execution of unauthorized scripts and utilize a Web Application Firewall (WAF) to detect and block common XSS injection patterns.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of March 21, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly exploitable due to the lack of input sanitization in a standard portal workflow.

Analyst Recommendation

Given the potential for unauthorized access to sensitive electronic health records, administrators should prioritize the deployment of the 8.0.0.2 update immediately. Failure to patch this vulnerability leaves the organization susceptible to cross-site scripting attacks that could compromise both staff credentials and patient data integrity.

Description Summary:
OpenEMR is vulnerable to a Server-Side Request Forgery (SSRF) flaw in the PDF creation function, allowing authenticated users to forge requests to internal or external resources.

Executive Summary:
An authenticated Server-Side Request Forgery vulnerability in OpenEMR versions prior to 8.0.0.2 allows attackers to perform unauthorized requests from the server.

Vulnerability Details

CVE-ID: CVE-2026-33321

Affected Software: OpenEMR

Affected Versions: < 8.0.0.2

Vulnerability: The vulnerability is a Server-Side Request Forgery (CWE-918) located in the PDF creation function, where form answers are parsed as unescaped HTML. It requires an attacker to possess at least the Notes - my encounters role to trigger the flaw.

Business Impact

Successful exploitation allows an attacker to interact with internal network resources that are otherwise inaccessible from the public internet, potentially leading to unauthorized data exposure or internal service disruption. With a CVSS score of 7.6, this vulnerability poses a significant risk to the confidentiality and integrity of medical practice management environments.

Remediation Plan

Immediate Action: Upgrade to OpenEMR version 8.0.0.2 or later to apply the necessary security patches and input sanitization.

Proactive Monitoring: Monitor server access logs for anomalous outgoing requests originating from the web server, particularly those directed toward internal IP addresses or sensitive infrastructure.

Compensating Controls: Implement strict egress filtering on the web server to restrict outbound connections to only necessary external endpoints, effectively limiting the reach of an SSRF attack.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown).

Analyst Notes: As of March 21, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is inherently exploitable by any user with the specific notes-related role, as the application fails to sanitize HTML input before processing it within the PDF generation engine.

Analyst Recommendation

Given the potential for internal network reconnaissance and unauthorized resource interaction, organizations running OpenEMR should prioritize updating to version 8.0.0.2 immediately. Restricting access to the vulnerable module and enforcing strict network segmentation will further reduce the attack surface until the update is successfully deployed.

Description Summary:
OpenEMR versions prior to 8.0.0.2 contain an authorization bypass flaw in the AclMain::zhAclCheck function, which fails to respect explicit deny permissions.

Executive Summary:
A critical authorization bypass vulnerability in OpenEMR allows authenticated users to retain access despite explicit administrative denials, posing a significant risk to data privacy and system security.

Vulnerability Details

CVE-ID: CVE-2026-33302

Affected Software: OpenEMR

Affected Versions: < 8.0.0.2

Vulnerability: The application utilizes an incorrect authorization mechanism within the AclMain::zhAclCheck function, which only evaluates positive allow permissions while ignoring explicit deny configurations. This flaw allows any authenticated user to bypass access restrictions if they belong to a group with conflicting permissions.

Business Impact

The inability to effectively revoke access for specific users or groups undermines the principle of least privilege within a medical practice management environment. Given the high CVSS score of 8.1, this flaw could lead to unauthorized access to sensitive electronic health records, potentially resulting in severe regulatory non-compliance, patient privacy violations, and significant reputational damage.

Remediation Plan

Immediate Action: Upgrade the OpenEMR installation to version 8.0.0.2 or later to apply the necessary logic corrections to the ACL module.

Proactive Monitoring: Review audit logs for unexpected access patterns by users whose privileges were intended to be revoked or restricted.

Compensating Controls: While no direct WAF rule can fully remediate this logic flaw, administrators should audit user group memberships to ensure that no users with restricted roles are currently assigned to broader groups that inherit access permissions.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 21, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherent to the authorization logic and does not require complex bypass techniques once the user is authenticated.

Analyst Recommendation

This vulnerability represents a significant failure in access control, which is critical for clinical environments managing protected health information. Organizations must prioritize the transition to version 8.0.0.2 to ensure that administrative deny rules are enforced correctly, thereby restoring proper security boundaries for user access.

Description Summary:
OpenEMR versions prior to 8.0.0.2 contain an arbitrary file read vulnerability within the PDF generation function due to improper output escaping.

Executive Summary:
OpenEMR versions before 8.0.0.2 are vulnerable to an arbitrary file read flaw that allows authenticated attackers to access sensitive server files.

Vulnerability Details

CVE-ID: CVE-2026-33301

Affected Software: OpenEMR

Affected Versions: < 8.0.0.2

Vulnerability: This vulnerability occurs in the PDF creation function where form answers are parsed as unescaped HTML. An attacker with the Notes - my encounters role can exploit this to include arbitrary image files or read local files from the server.

Business Impact

The ability to read arbitrary files on a server hosting electronic health records presents a severe risk to data confidentiality and regulatory compliance, such as HIPAA. An attacker could potentially extract configuration files, credentials, or sensitive patient data. Although the CVSS score of 8.1 reflects a high severity, the requirement for an authenticated user slightly limits the immediate attack surface.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0.2 or later immediately to apply the required fix for output escaping.

Proactive Monitoring: Review audit logs for unusual PDF generation requests or attempts to access system-level files through application functions.

Compensating Controls: Implement a Web Application Firewall (WAF) to inspect outgoing traffic and block unexpected file paths or malicious HTML tags in form inputs.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of March 21, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability stems from improper handling of user-supplied input during the rendering process.

Analyst Recommendation

Given the sensitive nature of medical practice management data, organizations should prioritize patching this vulnerability immediately. While it requires a valid user account, the potential for unauthorized data exfiltration is significant, and administrators should ensure all instances are updated to version 8.0.0.2 to close this security gap.

Description Summary:
OpenEMR versions prior to 8.0.0.2 contain a command injection vulnerability in the backup functionality, allowing authenticated attackers to execute arbitrary system commands.

Executive Summary:
A critical command injection vulnerability in OpenEMR allows authenticated attackers to execute arbitrary system commands, potentially leading to full server compromise.

Vulnerability Details

CVE-ID: CVE-2026-32238

Affected Software: OpenEMR

Affected Versions: Prior to 8.0.0.2

Vulnerability: The vulnerability is a command injection flaw within the application's backup functionality caused by insufficient input validation. An authenticated attacker can leverage this flaw to execute arbitrary commands at the system level.

Business Impact

Successful exploitation grants an attacker the ability to execute commands with the privileges of the web server, leading to complete system compromise, data exfiltration, or the disruption of critical medical records services. With a CVSS score of 9.1, this vulnerability represents an extreme risk to the availability and confidentiality of the electronic health records (EHR) platform.

Remediation Plan

Immediate Action: Update the OpenEMR installation to version 8.0.0.2 or higher to resolve the input validation flaw.

Proactive Monitoring: Review application logs for anomalous system calls or unexpected processes being spawned by the web server user.

Compensating Controls: Ensure that the OpenEMR application is running with the principle of least privilege, restricting the web server's ability to execute shell commands.

Exploitation Status

Public Exploit Available: False

Analyst Notes: As of Mar 19, 2026, there is no public information indicating active exploitation of this vulnerability. However, the high severity rating necessitates prompt patching to prevent potential unauthorized access.

Analyst Recommendation

Given the critical nature of the vulnerability and the potential for full system compromise, organizations should treat this update as a high-priority task. Apply the provided patch immediately to secure the environment against potential command injection attacks.

Description Summary:
OpenEMR versions prior to 8.0.0.1 contain a SQL injection vulnerability in the ajax graphs library, allowing authenticated attackers to execute arbitrary SQL commands.

Executive Summary:
A high-severity SQL injection vulnerability in OpenEMR allows authenticated attackers to potentially compromise the entire electronic health records database.

Vulnerability Details

CVE-ID: CVE-2026-32127

Affected Software: OpenEMR

Affected Versions: < 8.0.0.1

Vulnerability: The software suffers from a SQL injection flaw (CWE-89) within the ajax graphs library due to insufficient input validation. This vulnerability requires the attacker to have an authenticated session to trigger the malicious SQL commands.

Business Impact

The ability to perform SQL injection poses a significant risk to the confidentiality, integrity, and availability of sensitive patient medical records. Given the CVSS score of 8.8, this vulnerability could lead to full unauthorized database access, potential data exfiltration of protected health information, and severe regulatory and reputational consequences for medical facilities.

Remediation Plan

Immediate Action: Upgrade all instances of OpenEMR to version 8.0.0.1 or later to incorporate the vendor-supplied fix.

Proactive Monitoring: Review application access logs for suspicious database queries or unusual URL parameters associated with the ajax graphs library.

Compensating Controls: Deploy a Web Application Firewall (WAF) with updated rulesets designed to detect and block SQL injection patterns targeting the application.

Exploitation Status

Public Exploit Available: Yes — a public proof-of-concept repository exists on GitHub.

Analyst Notes: As of March 13, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly accessible to any authenticated user, making the rapid application of patches critical to prevent data compromise.

Analyst Recommendation

The severity of this flaw and the availability of a public proof-of-concept mandate an immediate response. Security teams should prioritize the update to version 8.0.0.1 across all production environments to eliminate the injection vector and secure sensitive patient data.

Description Summary:
A blind SQL injection vulnerability in OpenEMR prior to version 8.0.0.3 allows authenticated attackers to execute arbitrary SQL commands via the patient search functionality.

Executive Summary:
OpenEMR versions prior to 8.0.0.3 are vulnerable to a blind SQL injection attack that allows authenticated users to compromise sensitive medical database information.

Vulnerability Details

CVE-ID: CVE-2026-29187

Affected Software: OpenEMR

Affected Versions: < 8.0.0.3

Vulnerability: This is a blind SQL injection vulnerability (CWE-89) located in the patient search module (interface/new/new_search_popup.php). An authenticated attacker can manipulate HTTP parameter keys to execute unauthorized SQL queries against the backend database.

Business Impact

The exploitation of this vulnerability poses a significant risk to the confidentiality and integrity of electronic health records. Given the CVSS score of 8.1, this is a high severity issue that could lead to unauthorized data exfiltration, modification of patient records, or potential disruption of medical practice management services.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0.3 or later to apply the necessary security patches.

Proactive Monitoring: Review database access logs for unusual query patterns or unexpected SQL syntax errors originating from the patient search interface.

Compensating Controls: Deploy a Web Application Firewall (WAF) with rules configured to detect and block SQL injection patterns in HTTP request parameters.

Exploitation Status

Public Exploit Available: Yes — a public proof-of-concept exists via a GitHub repository.

Analyst Notes: As of March 26, 2026, there is no confirmed active exploitation in the wild, though a public proof-of-concept repository is available. The vulnerability is highly accessible to any authenticated user, making the deployment of the vendor-supplied patch the highest priority for security teams.

Analyst Recommendation

The presence of a public proof-of-concept combined with the sensitive nature of the data managed by OpenEMR necessitates immediate attention. Administrators must prioritize updating to version 8.0.0.3 to eliminate the SQL injection vector. Failure to patch leaves the system open to unauthorized database manipulation by any authenticated user on the network.

Description Summary:
OpenEMR versions prior to 8.0.0 are vulnerable to SQL injection in the prescription listing functionality, allowing authenticated attackers to execute arbitrary database commands.

Executive Summary:
A SQL injection vulnerability in OpenEMR versions prior to 8.0.0 allows authenticated attackers to compromise the application database, posing a high risk to sensitive medical data.

Vulnerability Details

CVE-ID: CVE-2026-25746

Affected Software: OpenEMR

Affected Versions: < 8.0.0

Vulnerability: This is a SQL injection vulnerability (CWE-89) located in the prescription module of OpenEMR. An attacker with authenticated access can exploit insufficient input validation within the prescription listing functionality to execute unauthorized SQL commands.

Business Impact

The ability to perform SQL injection attacks poses a severe threat to the integrity, confidentiality, and availability of patient health records. Given the CVSS score of 8.8, this vulnerability is classified as High, as it could allow an attacker to exfiltrate sensitive data, modify medical records, or disrupt clinical operations. Unauthorized database access in a medical environment often leads to regulatory non-compliance and significant reputational harm.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0 or later immediately to incorporate the necessary input validation patches.

Proactive Monitoring: Monitor database query logs for unusual syntax or patterns that deviate from standard application behavior, particularly those originating from the prescription module.

Compensating Controls: Deploy a Web Application Firewall (WAF) with updated rulesets designed to detect and block common SQL injection payloads.

Exploitation Status

Public Exploit Available: Yes, a public proof-of-concept exists as documented in the GitHub repository provided in the references.

Analyst Notes: As of February 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment, a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently exploitable due to the lack of sanitization in the prescription controller and class files, which directly handle user-supplied input.

Analyst Recommendation

The severity of this SQL injection vulnerability necessitates an immediate response, especially given the sensitive nature of the data stored within OpenEMR. Administrators must prioritize updating to version 8.0.0 to remediate the flaw at the source. Failure to patch allows authenticated users to potentially gain full control over the backend database, making this a critical security priority.

Description Summary:
A session expiration bypass in OpenEMR allows unauthenticated attackers or unauthorized users to maintain persistent access by sending a specific request parameter to suppress logout functionality.

Executive Summary:
OpenEMR versions prior to 8.0.0 contain a critical session expiration vulnerability that allows attackers to maintain unauthorized access to sensitive medical data indefinitely.

Vulnerability Details

CVE-ID: CVE-2026-25476

Affected Software: OpenEMR OpenEMR

Affected Versions: < 8.0.0

Vulnerability: This flaw involves insufficient session expiration (CWE-613) where the application fails to enforce logout checks when the skip_timeout_reset parameter is present in a request. This allows an attacker to keep a session active indefinitely, effectively bypassing security controls meant to invalidate expired or abandoned sessions.

Business Impact

The vulnerability poses a severe risk to patient confidentiality and compliance within healthcare environments. By preventing session expiration, unauthorized parties can access sensitive electronic health records on abandoned workstations or leverage stolen session cookies to maintain persistent access to the system. With a CVSS score of 7.5, this high severity flaw could lead to significant data breaches, regulatory non-compliance, and loss of patient trust.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0 or later immediately to implement the required session management security checks.

Proactive Monitoring: Review application logs for unusual patterns of requests containing the skip_timeout_reset parameter, especially those originating from unexpected IP addresses or occurring outside of normal business hours.

Compensating Controls: Deploy a Web Application Firewall (WAF) to detect and block requests containing the skip_timeout_reset parameter if they are not explicitly required for legitimate application functionality.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of February 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently dangerous because it allows for trivial session hijacking and persistence without requiring complex exploit chains.

Analyst Recommendation

The risk associated with CVE-2026-25476 is significant given the sensitive nature of the data stored within OpenEMR. Administrators must prioritize upgrading to version 8.0.0 to remediate this session bypass flaw. Failure to patch this vulnerability leaves the environment susceptible to unauthorized data access and persistent session hijacking.

Description Summary:
A missing authorization vulnerability in the OpenEMR REST API allows authenticated users to access or modify sensitive patient documents and insurance data without proper ACL permissions.

Executive Summary:
OpenEMR versions prior to 8.0.0 are vulnerable to an authorization bypass that exposes sensitive protected health information to any authenticated API client.

Vulnerability Details

CVE-ID: CVE-2026-25164

Affected Software: OpenEMR OpenEMR

Affected Versions: < 8.0.0

Vulnerability: The application fails to call the authorization check function within specific REST API routes located in apis/routes/_rest_routes_standard.inc.php. This allows any valid authenticated API user to bypass access control lists and perform unauthorized read or write operations on patient document and insurance records.

Business Impact

The compromise of protected health information (PHI) carries severe regulatory and financial consequences, including potential violations of HIPAA and other healthcare data privacy laws. With a CVSS score of 8.1, this high-severity flaw enables unauthorized data modification and exfiltration, which could lead to significant reputational damage and loss of patient trust in the medical practice.

Remediation Plan

Immediate Action: Upgrade the OpenEMR installation to version 8.0.0 or later to apply the necessary authorization checks.

Proactive Monitoring: Audit API access logs for anomalous patterns, specifically looking for users accessing document or insurance endpoints that fall outside their typical functional requirements.

Compensating Controls: Implement strict API gateway policies to limit the scope of bearer tokens and restrict access to the REST API to known, trusted IP addresses until the patch is applied.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of February 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is highly exploitable due to the lack of server-side validation for specific API routes.

Analyst Recommendation

Given the exposure of sensitive medical data, this vulnerability poses a significant risk to healthcare providers. Administrators must prioritize upgrading to version 8.0.0 immediately to restore proper access control and prevent unauthorized access to patient records.

Description Summary:
OpenEMR, an open-source medical practice management application, contains a security vulnerability that could lead to unauthorized access or data compromise.

Executive Summary:
A high-severity vulnerability in OpenEMR threatens the confidentiality and integrity of sensitive electronic health records and medical practice management data.

Vulnerability Details

CVE-ID: CVE-2026-25147

Affected Software: OpenEMR

Affected Versions: See vendor advisory for specific affected versions

Vulnerability: The vulnerability exists within the OpenEMR application framework, a platform used for managing electronic health records (EHR). Based on the available summary, the flaw likely involves improper input validation or access control, potentially allowing an attacker to interact with sensitive medical records.

Business Impact

The impact of a successful exploit is severe, potentially resulting in the exposure of Protected Health Information (PHI), which leads to significant legal liabilities and HIPAA compliance violations. The CVSS score of 7.1 justifies the High severity rating, as a breach could result in both reputational damage and the loss of critical patient data integrity.

Remediation Plan

Immediate Action: Update OpenEMR to the latest patched version immediately. Review the official OpenEMR security advisories for specific version-level instructions.

Proactive Monitoring: Review application access logs for unauthorized logins or unusual data export activities, especially focusing on administrative and patient record modules.

Compensating Controls: Deploy a Web Application Firewall (WAF) with rulesets specifically designed to block common web exploits such as SQL injection or cross-site scripting (XSS) that may target EHR platforms.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of March 1, 2026, there is no public information indicating active exploitation of this vulnerability. However, because OpenEMR is a public-facing application handling high-value data, the potential for exploitation remains a significant concern.

Analyst Recommendation

Given the sensitivity of the data handled by OpenEMR, this vulnerability must be addressed with the highest priority. We recommend that healthcare IT administrators apply the vendor-provided security updates immediately to prevent unauthorized access to patient health information.

Description Summary:
OpenEMR leaks gateway_api_key secrets in plaintext to the client, enabling unauthorized financial transactions and account takeovers of payment gateways.

Executive Summary:
A critical information disclosure vulnerability in OpenEMR allows unauthenticated users to view sensitive payment gateway API keys, leading to potential financial fraud and data breaches.

Vulnerability Details

CVE-ID: CVE-2026-25146

Affected Software: OpenEMR

Affected Versions: 5.0.2 to before 8.0.0

Vulnerability: Two specific code paths in the application render the gateway_api_key secret value in plaintext to the client. This allows an unauthenticated attacker to capture these keys by simply accessing the affected application paths.

Business Impact

With a CVSS score of 9.6, this vulnerability poses a significant financial and regulatory risk. Exposure of payment gateway keys can lead to unauthorized money movement, broad account takeovers, and the compromise of Protected Health Information (PHI), potentially resulting in severe HIPAA violations and reputational damage.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0 immediately. After upgrading, rotate all payment gateway API keys, as they must be considered compromised.

Proactive Monitoring: Review web server logs for access to the vulnerable paths and monitor payment gateway logs for unauthorized or suspicious transactions.

Compensating Controls: Use a Web Application Firewall (WAF) to block access to sensitive configuration paths and implement strict egress filtering for payment processing traffic.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Mar 3, 2026, there is no public information indicating active exploitation. However, the plaintext nature of the leak makes exploitation highly likely if an attacker identifies the specific paths.

Analyst Recommendation

Updating the software is only the first step; because the keys were exposed in plaintext, they must be rotated immediately to prevent ongoing unauthorized access to financial services.

Description Summary:
A broken access control vulnerability in the OpenEMR order types management system allows authenticated low-privilege users to modify procedure types without authorization.

Executive Summary:
A broken access control vulnerability in OpenEMR versions prior to 8.0.0 allows low-privilege users to perform unauthorized administrative actions, posing a significant risk to data integrity.

Vulnerability Details

CVE-ID: CVE-2026-25131

Affected Software: OpenEMR

Affected Versions: < 8.0.0

Vulnerability: This is a missing authorization flaw (CWE-862) located in the /openemr/interface/orders/types_edit.php endpoint. The vulnerability allows an authenticated user with low privileges, such as a receptionist, to add or modify medical procedure types without the required administrative permissions.

Business Impact

Successful exploitation of this flaw allows unauthorized actors to manipulate critical clinical data structures within the medical practice management system. Given the CVSS score of 8.8, this vulnerability presents a high risk of operational disruption and potential compromise of sensitive health records, which could lead to severe reputational damage and regulatory non-compliance.

Remediation Plan

Immediate Action: Upgrade the OpenEMR installation to version 8.0.0 or later to apply the necessary authorization checks.

Proactive Monitoring: Review audit logs for unexpected modifications to procedure types or clinical order configurations occurring from accounts with limited user roles.

Compensating Controls: Implement strict network-level access controls and ensure that only authorized personnel have authenticated access to the management interface until the patch can be applied.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of February 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is inherently dangerous due to its ability to bypass functional permissions, directly impacting the integrity of medical practice management workflows.

Analyst Recommendation

Given the high severity of this vulnerability and the potential for unauthorized manipulation of clinical records, it is imperative that organizations running OpenEMR prioritize the upgrade to version 8.0.0. Failure to patch allows low-privilege accounts to perform actions intended for administrators, creating a clear pathway for potential system sabotage or data corruption.

Description Summary:
An SQL injection vulnerability in the OpenEMR Patient REST API allows authenticated users to execute arbitrary queries and access protected health information.

Executive Summary:
A critical SQL injection vulnerability in OpenEMR allows authenticated users to bypass security controls and access sensitive patient data, leading to a major breach of PHI.

Vulnerability Details

CVE-ID: CVE-2026-24908

Affected Software: OpenEMR OpenEMR

Affected Versions: Prior to version 8.0.0

Vulnerability: The vulnerability exists in the Patient REST API endpoint due to the lack of proper validation on the _sort parameter. An authenticated attacker with API access can inject malicious SQL commands into the ORDER BY clause, enabling unauthorized database interaction.

Business Impact

The impact of this flaw is severe, potentially resulting in the full exposure of Protected Health Information (PHI) and a violation of HIPAA regulations. Beyond data theft, attackers could compromise administrative credentials or manipulate medical records, leading to significant legal, financial, and reputational damage. The CVSS score of 9.9 underscores the critical nature of this injection flaw.

Remediation Plan

Immediate Action: Administrators must upgrade OpenEMR installations to version 8.0.0 or higher to eliminate the vulnerable code path in the REST API.

Proactive Monitoring: Review database logs for anomalous queries containing SQL keywords in the ORDER BY clauses and monitor API traffic for suspicious sorting requests.

Compensating Controls: Deploy a Web Application Firewall (WAF) with SQL injection detection rules to intercept and block malicious payloads targeting the REST API endpoints.

Exploitation Status

Public Exploit Available: false

Analyst Notes: As of Feb 25, 2026, there is no public information indicating active exploitation of this vulnerability. Given that OpenEMR is widely used in healthcare, the incentive for exploitation by threat actors is high.

Analyst Recommendation

Protecting patient data is a primary requirement for healthcare providers. Organizations using OpenEMR must prioritize this update immediately to prevent unauthorized access to sensitive medical databases and ensure regulatory compliance.

Description Summary:
An unauthenticated token disclosure in OpenEMR's MedEx callback endpoint leaks API tokens, leading to PHI exfiltration and HIPAA violations.

Executive Summary:
OpenEMR contains a critical vulnerability where an unauthenticated attacker can steal MedEx API tokens, resulting in the exposure of sensitive patient health information.

Vulnerability Details

CVE-ID: CVE-2026-24898

Affected Software: OpenEMR

Affected Versions: Prior to 8.0.0

Vulnerability: The MedEx callback endpoint explicitly bypasses authentication ($ignoreAuth = true). By providing a callback_key via POST, an unauthenticated visitor triggers a login process that returns the full JSON response, including sensitive MedEx API tokens.

Business Impact

This vulnerability carries a CVSS score of 10. The exposure of API tokens allows for complete third-party service compromise, unauthorized actions on the MedEx platform, and the exfiltration of Protected Health Information (PHI). This constitutes a major security failure and a direct violation of HIPAA regulations.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0 immediately. Following the upgrade, revoke and rotate all MedEx API tokens to ensure any previously leaked tokens are invalidated.

Proactive Monitoring: Review access logs for the MedEx callback endpoint for unauthorized POST requests and monitor MedEx platform logs for suspicious activity.

Compensating Controls: Implement IP whitelisting for the MedEx callback endpoint so that only legitimate MedEx servers can communicate with the application.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of Mar 3, 2026, there is no public information indicating active exploitation. Given the sensitivity of the data involved, this vulnerability is a prime target for attackers seeking medical records.

Analyst Recommendation

This is a critical security flaw with severe legal and financial implications. We strongly urge immediate patching and token rotation to protect patient data and maintain regulatory compliance.

Description Summary:
An authorization bypass in the OpenEMR patient portal allows authenticated users to overwrite provider signatures, potentially leading to medical document forgery and legal fraud.

Executive Summary:
An authorization bypass vulnerability in OpenEMR versions prior to 8.0.0 allows authenticated patient portal users to forge provider signatures, posing significant risks to clinical integrity.

Vulnerability Details

CVE-ID: CVE-2026-24890

Affected Software: OpenEMR

Affected Versions: < 8.0.0

Vulnerability: This is an improper authorization flaw (CWE-285) within the patient portal signature endpoint. Authenticated portal users can bypass capability checks to overwrite provider signatures by manipulating the type parameter to admin-signature and providing a target provider user ID.

Business Impact

The ability for unauthorized users to forge medical signatures carries severe business and legal implications, including potential regulatory non-compliance, medical malpractice risks, and fraudulent documentation. While the CVSS score of 8.1 reflects a high severity due to the potential for significant data integrity compromise, the impact is strictly confined to authenticated users, which limits the attack surface.

Remediation Plan

Immediate Action: Upgrade OpenEMR to version 8.0.0 or later immediately to apply the necessary authorization checks that prevent unauthorized signature modification.

Proactive Monitoring: Review audit logs for suspicious activity involving the signature endpoint, specifically monitoring for instances where patient portal users attempt to access administrative signature functions.

Compensating Controls: If an immediate upgrade is not feasible, restrict access to the patient portal signature functionality at the network or application level, and implement strict monitoring of all changes made to provider signatures within the database.

Exploitation Status

Public Exploit Available: Unknown

Analyst Notes: As of February 27, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently exploitable by any authenticated patient portal user who can interact with the signature endpoint.

Analyst Recommendation

This vulnerability presents a clear risk to the integrity of medical records and institutional compliance. Administrators should prioritize patching to version 8.0.0 as soon as possible to neutralize the risk of signature forgery. Until the patch is deployed, ensure that administrative access to signature management is tightly controlled and monitored.

Description Summary:
An arbitrary file read vulnerability in OpenEMR allows any authenticated user to access sensitive files on the server filesystem via the EtherFax component.

Executive Summary:
Any authenticated user in OpenEMR can read sensitive server files, potentially exposing credentials, configuration data, and patient information.

Vulnerability Details

CVE-ID: CVE-2026-24849

Affected Software: OpenEMR

Affected Versions: Versions prior to 7.0.4

Vulnerability: The disposeDocument() method in EtherFaxActions.php fails to properly validate file paths. This allows any authenticated user, regardless of their privilege level, to perform path traversal and read arbitrary files from the server.

Business Impact

The exposure of sensitive files can lead to a total breach of patient confidentiality (HIPAA violation) and provide attackers with the credentials needed for further lateral movement or full system compromise. The CVSS score of 9.9 reflects the high impact on data integrity and confidentiality.

Remediation Plan

Immediate Action: Update OpenEMR to version 7.0.4 immediately to patch the insecure file handling logic in the EtherFax component.

Proactive Monitoring: Audit application logs for unusual calls to EtherFaxActions.php and check for attempts to access system files like /etc/passwd or configuration files.

Compensating Controls: Restrict filesystem permissions for the web server user to ensure it cannot access sensitive system directories outside of the application root.

Exploitation Status

Public Exploit Available: No

Analyst Notes: As of February 25, 2026, active exploitation has not been reported. However, because any low-privileged user can exploit this, the internal threat risk is significantly elevated.

Analyst Recommendation

Healthcare organizations must prioritize this update due to the sensitive nature of the data handled by OpenEMR. Applying the patch to version 7.0.4 is the only effective way to prevent unauthorized file access by authenticated users.

Description Summary:
A stored cross-site scripting vulnerability in OpenEMR versions prior to 8.0.0 allows authenticated users with clinician privileges to perform account takeover and privilege escalation.

Executive Summary:
OpenEMR versions prior to 8.0.0 are vulnerable to a stored cross-site scripting flaw that permits authenticated users to hijack sessions and escalate privileges to administrator.

Vulnerability Details

CVE-ID: CVE-2025-69231

Affected Software: OpenEMR

Affected Versions: < 8.0.0

Vulnerability: This vulnerability is a stored cross-site scripting (CWE-79) issue located within the GAD-7 anxiety assessment form. It requires the attacker to be an authenticated user with at least clinician-level privileges to inject malicious scripts that execute in the context of other users.

Business Impact

The ability for a clinician to escalate privileges to an administrator poses a significant risk to the integrity and confidentiality of sensitive medical records. A successful exploit could result in unauthorized data access, the modification of patient health information, and full administrative compromise of the medical practice management system. The CVSS score of 8.7 reflects the high severity of this risk, particularly given the impact on confidentiality and integrity.

Remediation Plan

Immediate Action: Update OpenEMR to version 8.0.0 or later to apply the necessary input sanitization patches.

Proactive Monitoring: Audit access logs for unusual clinician activity or unauthorized administrative actions performed by low-privileged accounts.

Compensating Controls: Deploy a Web Application Firewall (WAF) configured to inspect input for malicious script tags, which may help block the injection of payloads into the GAD-7 form fields.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of February 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is inherently dangerous because it leverages trusted user interactions to execute arbitrary JavaScript within the application.

Analyst Recommendation

The vulnerability presents a high risk to clinical environments due to the potential for privilege escalation and unauthorized access to medical data. Administrators must prioritize the transition to version 8.0.0 immediately to eliminate the underlying injection vector. Failure to patch leaves the system open to session hijacking and administrative compromise by malicious or compromised internal accounts.

Description Summary:
OpenEMR versions prior to 7.0.4 contain an improper certificate validation vulnerability in its HTTP client wrapper, allowing potential man-in-the-middle attacks on external HTTPS connections.

Executive Summary:
OpenEMR versions before 7.0.4 are vulnerable to man-in-the-middle attacks due to disabled SSL/TLS certificate verification, which could lead to the interception or manipulation of sensitive healthcare data.

Vulnerability Details

CVE-ID: CVE-2025-67752

Affected Software: OpenEMR

Affected Versions: < 7.0.4

Vulnerability: The application utilizes an HTTP client wrapper that disables SSL/TLS certificate verification by default. This flaw allows an unauthenticated attacker to conduct man-in-the-middle attacks against external API communications, potentially exposing Protected Health Information (PHI).

Business Impact

The vulnerability carries a CVSS score of 8.1, reflecting a high potential for impact on confidentiality, integrity, and availability. Successful exploitation could result in the compromise of sensitive medical records and unauthorized manipulation of data transmitted to government healthcare services or external providers, leading to severe regulatory non-compliance and loss of patient trust.

Remediation Plan

Immediate Action: Upgrade the OpenEMR installation to version 7.0.4 or later to ensure proper SSL/TLS certificate validation is enforced.

Proactive Monitoring: Review system logs for unusual outbound connection patterns or errors related to SSL/TLS handshake failures, which may indicate interception attempts.

Compensating Controls: Implement strict network egress filtering to restrict traffic from the OpenEMR server to only known and trusted external API endpoints, reducing the surface area for malicious interception.

Exploitation Status

Public Exploit Available: No (exploit_available: unknown)

Analyst Notes: As of February 26, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The vulnerability is inherently exploitable because it relies on a default configuration setting that bypasses standard security protocols for external communications.

Analyst Recommendation

Given the critical nature of the data managed by OpenEMR, the risk of data interception via man-in-the-middle attacks is significant. Organizations should prioritize updating to version 7.0.4 immediately. If an update cannot be performed today, ensure that all external service integrations are audited and that network-level security controls are in place to monitor and limit outbound traffic from the application environment.

Description Summary:
A broken access control vulnerability in the OpenEMR Profile Edit endpoint allows authenticated users to modify the records of other users.

Executive Summary:
OpenEMR versions prior to 7.0.4 are vulnerable to an improper access control flaw that permits unauthorized modification of user profile data and potential account takeover.

Vulnerability Details

CVE-ID: CVE-2025-67645

Affected Software: OpenEMR

Affected Versions: < 7.0.4

Vulnerability: The application fails to perform adequate authorization checks on the Profile Edit endpoint, allowing an authenticated user to manipulate request parameters such as pid or pubpid to target another user's account.

Business Impact

The vulnerability carries a CVSS score of 8.8, indicating a high level of severity due to the potential for unauthorized data modification and account takeover. In a medical environment, this could lead to the corruption of sensitive patient or provider records, resulting in significant privacy breaches, regulatory non-compliance, and loss of trust in the integrity of the health information system.

Remediation Plan

Immediate Action: Upgrade all instances of OpenEMR to version 7.0.4 or later to apply the necessary access control patches.

Proactive Monitoring: Review application logs for suspicious activity centered on the Profile Edit endpoint, specifically monitoring for unusual changes to user identifiers or account details.

Compensating Controls: Ensure that strict session management is enforced and consider implementing additional database-level auditing to detect unauthorized modifications to user profile tables.

Exploitation Status

Public Exploit Available: Unknown.

Analyst Notes: As of January 29, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The flaw is straightforward to trigger, requiring only standard user credentials and basic knowledge of request parameter manipulation.

Analyst Recommendation

Given the potential for unauthorized account modification and the availability of a proof-of-concept, this vulnerability poses a significant risk to the integrity of medical records. Administrators must prioritize the upgrade to version 7.0.4 immediately to remediate the broken access control mechanism and secure the application against potential exploitation.