Snews CMS 1.7 contains an unrestricted file upload vulnerability, allowing unauthenticated attackers to upload and execute arbitrary PHP files to achi...
Description
Snews CMS 1.7 contains an unrestricted file upload vulnerability, allowing unauthenticated attackers to upload and execute arbitrary PHP files to achieve remote code execution.
AI Analyst Comment
Remediation
Update HP executables to to the latest version. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: Snews
PRODUCT: Snews CMS
AFFECTED_VERSIONS: 1.7
---END_METADATA---
Description Summary:
Snews CMS 1.7 contains an unrestricted file upload vulnerability, allowing unauthenticated attackers to upload and execute arbitrary PHP files to achieve remote code execution.
Executive Summary:
A critical unrestricted file upload vulnerability in Snews CMS 1.7 allows unauthenticated attackers to execute arbitrary code on the web server.
Vulnerability Details
CVE-ID: CVE-2016-20052
Affected Software: Snews CMS
Affected Versions: 1.7
Vulnerability: The application fails to validate file extensions during the upload process within the
snews_filesdirectory. This allows an unauthenticated attacker to upload malicious PHP scripts via a multipart form-data request and execute them directly via the web browser.Business Impact
With a CVSS score of 9.8, this vulnerability allows for full control of the web server. This leads to potential unauthorized access to site databases, defacement, or the use of the server as a vector for further attacks against the organization, resulting in severe reputational and data security damage.
Remediation Plan
Immediate Action: Upgrade to the latest version of Snews CMS immediately and remove any suspicious files found within the
snews_filesdirectory.Proactive Monitoring: Regularly audit the web root for unauthorized files and review server access logs for requests to files with suspicious extensions.
Compensating Controls: Configure the web server (e.g., Apache or Nginx) to disable script execution within the upload directory to prevent the activation of uploaded malicious files.
Exploitation Status
Public Exploit Available: true
Analyst Notes: As of April 4, 2026, there is no public information indicating active exploitation of this vulnerability. However, due to the nature of the flaw, the potential for exploitation is high.
Analyst Recommendation
This vulnerability is critical as it provides an easy path to remote code execution. Security teams must ensure that the CMS is updated and that strict file upload policies are enforced to mitigate the risk of unauthorized server access.