CVE-2025-69347: WPSubscription Auth Bypass Vulnerability

CVE-2025-69347 Overview

CVE-2025-69347 is an Authorization Bypass Through User-Controlled Key vulnerability affecting the WPSubscription plugin developed by Convers Lab for WordPress. This Insecure Direct Object Reference (IDOR) vulnerability allows authenticated attackers to exploit incorrectly configured access control security levels, potentially gaining unauthorized access to subscription data and user information belonging to other users.

Critical Impact

Authenticated attackers can bypass authorization controls to access or modify subscription data belonging to other users, leading to significant confidentiality breaches and potential data manipulation across the WordPress site.

Affected Products

• WPSubscription plugin versions up to and including 1.8.10
• WordPress installations running vulnerable WPSubscription versions
• Sites using WPSubscription for subscription management functionality

Discovery Timeline

• 2026-03-25 - CVE-2025-69347 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2025-69347

Vulnerability Analysis

This vulnerability is classified as CWE-639: Authorization Bypass Through User-Controlled Key, commonly referred to as Insecure Direct Object Reference (IDOR). The flaw exists in the WPSubscription plugin's handling of user-supplied identifiers when accessing subscription-related resources.

The vulnerability allows a low-privileged authenticated user to manipulate object references (such as subscription IDs, user IDs, or similar parameters) to access or modify data belonging to other users. Because the plugin fails to properly verify that the requesting user has legitimate authorization to access the targeted resource, attackers can enumerate and exploit these references to breach confidentiality boundaries.

The scope of this vulnerability is changed (S:C in CVSS vector), meaning the vulnerable component can affect resources beyond its security scope. This is particularly concerning in multi-user WordPress environments where subscription data may contain sensitive personal or payment information.

Root Cause

The root cause of this vulnerability lies in the WPSubscription plugin's failure to implement proper authorization checks when processing requests that include user-controlled identifiers. Instead of validating that the authenticated user has permission to access a specific subscription record, the plugin directly uses the supplied identifier to retrieve or modify data without ownership verification.

This is a common pattern in IDOR vulnerabilities where developers assume that authentication alone is sufficient for authorization, neglecting to implement object-level access control checks.

Attack Vector

The attack is network-based and requires only low-level authentication to exploit. An attacker with a valid WordPress account on the target site can:

1. Authenticate to the WordPress installation with any valid user credentials
2. Identify endpoints that accept subscription or user identifiers as parameters
3. Enumerate or manipulate these identifiers to reference other users' subscription data
4. Access confidential subscription information or potentially modify subscription states

The vulnerability requires no user interaction, meaning an attacker can automate exploitation to systematically access all subscription data on a vulnerable site. The attack complexity is low, as exploitation is straightforward once the vulnerable endpoints are identified.

For detailed technical information about this vulnerability, refer to the Patchstack WP Subscription Vulnerability advisory.

Detection Methods for CVE-2025-69347

Indicators of Compromise

• Unusual patterns of sequential or systematic subscription ID access in WordPress logs
• Multiple subscription record accesses from a single authenticated user session that don't correspond to their own data
• API or endpoint requests with manipulated ID parameters from authenticated users
• Anomalous access patterns to subscription management endpoints

Detection Strategies

• Monitor WordPress access logs for requests to WPSubscription endpoints with unusual ID parameter patterns
• Implement Web Application Firewall (WAF) rules to detect sequential ID enumeration attempts
• Review application logs for access control violations or unauthorized data access attempts
• Deploy endpoint detection solutions that can identify IDOR exploitation patterns

Monitoring Recommendations

• Enable detailed logging for all WPSubscription plugin activity and API interactions
• Configure alerts for high-volume subscription data access from individual user sessions
• Implement user behavior analytics to detect accounts accessing resources outside their normal patterns
• Regularly audit subscription access logs for unauthorized cross-user data retrieval

How to Mitigate CVE-2025-69347

Immediate Actions Required

• Update WPSubscription plugin to a patched version as soon as one becomes available from Convers Lab
• Audit subscription access logs for signs of prior exploitation
• Consider temporarily disabling the WPSubscription plugin if it's not critical to operations
• Review and restrict user permissions on the WordPress installation to minimize authenticated attack surface

Patch Information

Organizations should monitor the official WPSubscription plugin page and Convers Lab communications for security updates addressing this vulnerability. The Patchstack advisory provides additional guidance on remediation steps.

Until an official patch is released, implement the workarounds below to reduce risk.

Workarounds

• Restrict access to WordPress user registration if not required for business operations
• Implement additional authentication requirements (such as IP allowlisting) for subscription management functions
• Deploy a Web Application Firewall with rules to detect and block IDOR exploitation attempts
• Consider implementing server-side access control middleware that validates user ownership before serving subscription data

# Configuration example for restricting plugin access via .htaccess
# Add to WordPress .htaccess to limit subscription endpoint access by IP

<IfModule mod_rewrite.c>
RewriteEngine On
# Block direct access to subscription endpoints except from trusted IPs
RewriteCond %{REQUEST_URI} ^.*wp-json.*subscription.* [NC,OR]
RewriteCond %{REQUEST_URI} ^.*wpsubscription.* [NC]
RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. 
RewriteRule ^(.*)$ - [F,L]
</IfModule>