Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Faith & Hope fai...
Description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Faith & Hope faith-hope allows PHP Local File Inclusion
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
Executive Summary:
A critical vulnerability has been identified in the manfcarlo WP Funnel Manager plugin for WordPress. This flaw, rated 9.8 out of 10, allows an unauthenticated attacker to inject malicious code by sending specially crafted data to an affected website, potentially leading to a complete system compromise, data theft, and website defacement. Immediate patching is required to mitigate the significant risk posed by this vulnerability.
Vulnerability Details
CVE-ID: CVE-2025-52761
Affected Software: manfcarlo WP Funnel Manager
Affected Versions: All versions up to and including 1.4.0
Vulnerability:
The vulnerability is a Deserialization of Untrusted Data issue. The WP Funnel Manager plugin improperly handles serialized data from user-supplied input. An attacker can submit a malicious serialized PHP object, and when the application deserializes this data, it can trigger the execution of arbitrary code on the server. This type of attack, known as a PHP Object Injection, can be exploited remotely without requiring any authentication, leading to a full compromise of the underlying web server.
Business Impact
This vulnerability is of critical severity with a CVSS score of 9.8, indicating a high likelihood of exploitation with a severe impact. Successful exploitation could grant an attacker complete control over the affected web server. Potential consequences include the theft of sensitive data (customer information, user credentials, payment details), installation of malware or ransomware, website defacement, and using the compromised server to launch further attacks. Such an incident could result in significant financial loss, reputational damage, and regulatory penalties.
Remediation Plan
Immediate Action:
Immediately update the manfcarlo WP Funnel Manager plugin to the latest version available (a version later than 1.4.0) which contains the security patch for this vulnerability. After updating, monitor system and web server access logs for any signs of compromise or unusual activity that may have occurred prior to the patch.
Proactive Monitoring:
Review web server access logs for suspicious POST requests containing long, complex strings, which may indicate serialized PHP object payloads. Monitor for unexpected processes spawned by the web server user (e.g.,
www-data,apache). File Integrity Monitoring (FIM) should be used to detect the creation of unauthorized files, such as web shells, in the web root directory.Compensating Controls:
If immediate patching is not feasible, consider the following temporary measures:
Exploitation Status
Public Exploit Available: false
Analyst Notes:
As of August 28, 2025, there are no known public exploits or active exploitation campaigns targeting this vulnerability. However, due to the critical CVSS score and the relative ease of exploiting deserialization vulnerabilities, it is highly probable that proof-of-concept exploits will be developed and used by threat actors in the near future.
Analyst Recommendation
Given the critical severity (CVSS 9.8) of this vulnerability, we strongly recommend that organizations prioritize the immediate update of the manfcarlo WP Funnel Manager plugin on all affected WordPress sites. Although this CVE is not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog, its high score makes it a prime target for opportunistic attackers. Delaying remediation exposes the organization to an unacceptable level of risk for a full system compromise.