Overview
A significant security vulnerability, identified as CVE-2025-66107, has been discovered in the Subscriptions & Memberships for PayPal WordPress plugin, affecting versions up to and including 1.1.7. This vulnerability stems from a “Missing Authorization” issue, leading to “Exploiting Incorrectly Configured Access Control Security Levels”. Essentially, it allows unauthorized users to potentially access or modify sensitive data or functionalities, compromising the security of websites using the affected plugin.
Technical Details
The core of this vulnerability lies in the inadequate implementation of access control mechanisms within the plugin. The plugin fails to properly verify the authorization of users attempting to perform certain actions. This allows attackers to bypass intended security restrictions and gain unauthorized access to features or data that should be restricted to specific user roles or permissions. This “Missing Authorization” directly enables the “Exploiting Incorrectly Configured Access Control Security Levels” described in the CVE.
CVSS Analysis
Currently, the CVE entry lists the severity as N/A and the CVSS score as N/A. This likely means that the CVSS score is still being calculated or has not yet been determined. However, given the description of the vulnerability (broken access control), it is highly likely that the final CVSS score will be in the medium to high range, depending on the specifics of how the vulnerability can be exploited and the potential impact.
Possible Impact
The potential impact of CVE-2025-66107 is significant. An attacker could potentially:
- Gain unauthorized access to subscription data, including user details.
- Modify subscription settings, potentially disrupting service for legitimate users.
- Elevate user privileges, granting themselves administrative access.
- In extreme cases, inject malicious code into the website, leading to further compromise.
Mitigation and Patch Steps
To protect your website from CVE-2025-66107, it is strongly recommended to take the following steps:
- Update the Plugin: Immediately update the Subscriptions & Memberships for PayPal plugin to the latest available version, if a patched version is released. The fix addresses the broken access control vulnerability.
- Disable the Plugin (If No Patch Available): If an updated version is not yet available, temporarily disable the plugin until a patch is released.
- Monitor Website Activity: Keep a close eye on your website’s logs for any suspicious activity that might indicate an attempted exploit.
- Implement Web Application Firewall (WAF) Rules: Consider implementing WAF rules to detect and block known attack patterns targeting this vulnerability.
