CVE-2025-49925: WPLMS Auth Bypass Vulnerability

CVE-2025-49925 Overview

A Missing Authorization vulnerability has been identified in the VibeThemes WPLMS plugin for WordPress. This broken access control flaw allows unauthenticated attackers to access functionality that is not properly constrained by Access Control Lists (ACLs), potentially exposing sensitive learning management system data without proper authorization checks.

Critical Impact

Unauthenticated attackers can bypass authorization controls to access restricted WPLMS functionality, potentially exposing confidential course content, student data, and other protected resources within WordPress Learning Management System deployments.

Affected Products

• VibeThemes WPLMS Plugin versions up to and including 1.9.9.7
• WordPress Learning Management System (WPLMS) deployments using the vulnerable plugin
• WordPress sites with the wplms_plugin component installed

Discovery Timeline

• 2025-10-22 - CVE-2025-49925 published to NVD
• 2026-04-27 - Last updated in NVD database

Technical Details for CVE-2025-49925

Vulnerability Analysis

This vulnerability stems from missing authorization checks within the WPLMS plugin, classified under CWE-862 (Missing Authorization). The affected plugin fails to properly verify user permissions before granting access to protected functionality, allowing unauthorized users to bypass intended access restrictions.

The flaw enables network-based attacks without requiring any authentication or user interaction. Attackers can remotely access functionality that should be restricted to authorized users, potentially compromising the confidentiality of data within the learning management system.

Root Cause

The root cause is the absence of proper authorization validation in the WPLMS plugin's access control implementation. When certain functionality is invoked, the plugin does not adequately verify that the requesting user has the necessary permissions to access that functionality. This represents a fundamental breakdown in the principle of least privilege, where the application should default to denying access unless explicitly authorized.

The missing authorization checks allow functionality that should be constrained by ACLs to be accessed by any user, including unauthenticated visitors.

Attack Vector

The attack vector is network-based, requiring no privileges or user interaction. An attacker can exploit this vulnerability by:

1. Identifying WordPress sites running the vulnerable WPLMS plugin version 1.9.9.7 or earlier
2. Crafting requests to access functionality that lacks proper authorization checks
3. Bypassing access control restrictions to reach protected resources or features
4. Extracting confidential information such as course content, user data, or administrative functionality

The vulnerability allows unauthorized access to functionality that should be restricted, potentially enabling attackers to view confidential course materials, student information, or other protected LMS data. For detailed technical analysis, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-49925

Indicators of Compromise

• Unusual access patterns to WPLMS plugin endpoints from unauthenticated sessions
• Unexpected data access or export activities within the learning management system
• Access log entries showing requests to protected WPLMS functionality without valid authentication tokens
• Anomalous queries to LMS-related database tables from unauthorized contexts

Detection Strategies

• Monitor WordPress access logs for requests to WPLMS plugin endpoints that lack proper authentication headers
• Implement Web Application Firewall (WAF) rules to detect and block unauthorized access attempts to known WPLMS functionality
• Deploy endpoint detection solutions to identify suspicious access patterns targeting the WordPress Learning Management System
• Audit WPLMS plugin configurations and compare against known secure baselines

Monitoring Recommendations

• Enable comprehensive logging for all WPLMS plugin interactions and review logs regularly for anomalies
• Configure alerting for access attempts to sensitive LMS functionality from unauthenticated sessions
• Monitor for reconnaissance activity targeting WordPress installations with WPLMS plugin identification
• Track data access patterns within the learning management system for unusual bulk queries or exports

How to Mitigate CVE-2025-49925

Immediate Actions Required

• Update the WPLMS plugin to a version newer than 1.9.9.7 that includes the security fix
• Review WPLMS access logs for any signs of unauthorized access that may have occurred before patching
• Conduct a security audit of any sensitive data that may have been exposed through the vulnerable plugin
• Implement additional access control measures at the web server or WAF level as a defense-in-depth measure

Patch Information

Organizations using the WPLMS plugin should immediately update to a patched version that addresses this missing authorization vulnerability. Check the Patchstack Vulnerability Report for the latest security advisory and patch information from VibeThemes.

Workarounds

• Implement Web Application Firewall rules to restrict access to WPLMS plugin endpoints until patching is complete
• Temporarily disable the WPLMS plugin if critical functionality is not immediately required
• Restrict network access to WordPress admin and plugin areas using IP whitelisting where feasible
• Add server-level authentication requirements for sensitive WPLMS functionality as an interim measure

# Example: Restrict access to WPLMS plugin directory via .htaccess
# Add to WordPress root .htaccess as temporary mitigation

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_URI} ^/wp-content/plugins/wplms_plugin/ [NC]
    RewriteCond %{HTTP_COOKIE} !wordpress_logged_in [NC]
    RewriteRule ^(.*)$ - [F,L]
</IfModule>