CVE-2025-69394: Cnvrse Authorization Bypass Vulnerability

CVE-2025-69394 Overview

CVE-2025-69394 is an Authorization Bypass Through User-Controlled Key vulnerability affecting the Cnvrse WordPress plugin. This Insecure Direct Object Reference (IDOR) vulnerability allows attackers to exploit incorrectly configured access control security levels, potentially gaining unauthorized access to resources belonging to other users.

Critical Impact

Attackers can bypass authorization controls by manipulating user-controlled keys, potentially accessing or modifying data belonging to other users without proper authorization.

Affected Products

• Cnvrse WordPress Plugin versions up to and including 026.02.10.20

Discovery Timeline

• 2026-02-20 - CVE CVE-2025-69394 published to NVD
• 2026-02-20 - Last updated in NVD database

Technical Details for CVE-2025-69394

Vulnerability Analysis

This vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key), commonly known as Insecure Direct Object Reference (IDOR). The Cnvrse WordPress plugin fails to properly validate whether a user has authorization to access specific resources before granting access. Instead of implementing proper access control checks, the application relies on user-supplied input to determine which objects to access, allowing attackers to manipulate these references to gain unauthorized access.

IDOR vulnerabilities occur when applications expose internal implementation objects to users without sufficient validation. In the context of this WordPress plugin, attackers can modify parameters that reference internal objects—such as user IDs, record identifiers, or file references—to access resources belonging to other users or gain elevated privileges.

Root Cause

The root cause of this vulnerability lies in the plugin's improper implementation of access control mechanisms. The application uses user-controlled input (such as request parameters or identifiers) to directly reference internal objects without verifying that the requesting user has legitimate authorization to access those objects. This design flaw allows attackers to simply change the reference value to access another user's data.

Attack Vector

An attacker exploiting this vulnerability would typically:

1. Authenticate to the WordPress site with a valid user account
2. Identify requests that contain object references (such as numeric IDs or predictable identifiers)
3. Modify these references to point to objects belonging to other users
4. Access or manipulate data that should be restricted to other users

The vulnerability can be exploited remotely through manipulated HTTP requests. The specific attack vector details can be found in the Patchstack Vulnerability Report which provides additional technical context.

Detection Methods for CVE-2025-69394

Indicators of Compromise

• Unusual access patterns in WordPress logs showing sequential or enumerated object ID access
• Multiple requests from a single user session attempting to access resources with different IDs in rapid succession
• Authentication logs showing successful access to resources followed by unauthorized data access
• Error logs indicating access denial attempts or parameter tampering

Detection Strategies

• Monitor web application firewall (WAF) logs for parameter manipulation patterns, particularly in requests to the Cnvrse plugin endpoints
• Implement logging for all sensitive object access and review for anomalous patterns
• Configure intrusion detection systems to alert on enumeration attempts targeting plugin-specific URLs
• Review WordPress audit logs for unauthorized cross-user data access attempts

Monitoring Recommendations

• Enable detailed request logging for the Cnvrse plugin to capture all parameter values
• Set up alerts for multiple sequential object ID access attempts from single sessions
• Monitor for unusual spikes in database queries related to user data retrieval
• Implement rate limiting on endpoints that accept object identifiers as parameters

How to Mitigate CVE-2025-69394

Immediate Actions Required

• Review and audit all installations of the Cnvrse WordPress plugin for versions 026.02.10.20 or earlier
• If no patch is available, consider disabling the plugin until a security update is released
• Implement additional access control validation at the server level through security plugins or WAF rules
• Audit user activity logs for any signs of exploitation or unauthorized access attempts

Patch Information

Organizations should monitor the Patchstack Vulnerability Report for updates regarding security patches from the vendor. Update to the latest patched version of the Cnvrse plugin as soon as it becomes available.

Workarounds

• Configure a Web Application Firewall (WAF) to validate and sanitize object reference parameters in requests to the affected plugin
• Implement server-side access control checks through custom code or security plugins to validate user authorization before processing requests
• Restrict access to the plugin's functionality to trusted users only until a patch is available
• Consider implementing WordPress security plugins that provide additional IDOR protection capabilities

# Example: Restrict plugin access via .htaccess (if applicable)
# Add to WordPress .htaccess to limit access to plugin endpoints
<IfModule mod_rewrite.c>
    RewriteEngine On
    # Block direct access to sensitive plugin endpoints
    RewriteCond %{REQUEST_URI} ^/wp-content/plugins/cnvrse/ [NC]
    RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. 
    RewriteRule ^(.*)$ - [F,L]
</IfModule>