CVE-2024-37094
📋 TL;DR
This CVE describes a missing authorization vulnerability in the MasterStudy LMS WordPress plugin that allows attackers to bypass access controls and perform unauthorized actions. The vulnerability affects all versions up to 3.2.12, potentially impacting any WordPress site using this learning management system plugin.
💻 Affected Systems
- MasterStudy LMS WordPress Plugin
📦 What is this software?
Masterstudy Lms by Stylemixthemes
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify course content, access student data, manipulate user roles, or compromise the entire WordPress installation through privilege escalation.
Likely Case
Unauthorized users accessing restricted functionality such as viewing/modifying courses, accessing student information, or manipulating plugin settings.
If Mitigated
With proper access controls and authentication mechanisms, impact would be limited to authorized users only performing intended actions.
🎯 Exploit Status
Exploitation requires some level of access but can be performed by users with minimal privileges to escalate access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.13 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find MasterStudy LMS
4. Click 'Update Now' if available
5. If not available, download latest version from WordPress repository
6. Deactivate, delete old version, upload and activate new version
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the MasterStudy LMS plugin until patched
wp plugin deactivate masterstudy-lms-learning-management-system
Access Restriction via .htaccess
linuxRestrict access to plugin directories
# Add to .htaccess in wp-content/plugins/masterstudy-lms-learning-management-system/
Order Deny,Allow
Deny from all
🧯 If You Can't Patch
- Implement strict role-based access controls and audit all user permissions
- Monitor plugin directories for unauthorized access attempts and implement WAF rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > MasterStudy LMS version. If version is 3.2.12 or lower, system is vulnerable.Check Version:
wp plugin get masterstudy-lms-learning-management-system --field=versionVerify Fix Applied:
Verify plugin version is 3.2.13 or higher in WordPress admin panel and test access controls for restricted functionality.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to MasterStudy LMS admin endpoints
- User role changes without proper authorization
- Unexpected course or user data modifications
Network Indicators:
- HTTP requests to /wp-content/plugins/masterstudy-lms-learning-management-system/ with unauthorized parameters
- POST requests to LMS admin endpoints from non-admin users
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "masterstudy-lms") AND (user_role!="administrator" OR user_id NOT IN authorized_users)