CVE-2024-4222
📋 TL;DR
The Tutor LMS Pro WordPress plugin up to version 2.7.0 lacks proper capability checks on multiple functions, allowing unauthenticated attackers to add, modify, or delete user metadata and plugin settings. This affects all WordPress sites using vulnerable versions of the Tutor LMS Pro plugin.
💻 Affected Systems
- Tutor LMS Pro WordPress Plugin
📦 What is this software?
Tutor Lms by Themeum
⚠️ Risk & Real-World Impact
Worst Case
Attackers could compromise all user accounts, modify critical plugin settings, delete user data, and potentially gain administrative access to the WordPress site.
Likely Case
Attackers will modify user profiles, change plugin configurations to disrupt functionality, and potentially inject malicious code through plugin settings.
If Mitigated
With proper network segmentation and monitoring, impact would be limited to the WordPress application layer with no lateral movement to other systems.
🎯 Exploit Status
The vulnerability is straightforward to exploit as it requires no authentication and involves simple API calls to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.7.1 or later
Vendor Advisory: https://www.themeum.com/product/tutor-lms/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Tutor LMS Pro and click 'Update Now'. 4. Verify update to version 2.7.1 or higher.
🔧 Temporary Workarounds
Disable Tutor LMS Pro Plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate tutor-pro
Restrict Access to WordPress Admin
linuxLimit access to WordPress admin interface using IP whitelisting
# Add to .htaccess for Apache:
Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
# Add to nginx config:
location /wp-admin/ {
allow 192.168.1.0/24;
deny all;
}
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block requests to Tutor LMS Pro API endpoints
- Enable detailed logging for all Tutor LMS Pro plugin activity and monitor for unauthorized changes
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Tutor LMS Pro version. If version is 2.7.0 or lower, you are vulnerable.Check Version:
wp plugin get tutor-pro --field=versionVerify Fix Applied:
After updating, verify Tutor LMS Pro version shows 2.7.1 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-json/tutor/* endpoints from unauthenticated users
- Unexpected modifications to wp_usermeta or tutor_* option values in database logs
- Multiple failed authentication attempts followed by successful Tutor LMS API calls
Network Indicators:
- HTTP requests to Tutor LMS REST API endpoints without authentication headers
- Unusual traffic patterns to /wp-json/tutor/v1/* endpoints
SIEM Query:
source="wordpress" AND (uri_path="/wp-json/tutor/*" OR uri_path="/wp-admin/admin-ajax.php") AND http_method="POST" AND user_agent NOT CONTAINS "wp-admin" AND response_code=200