CVE-2024-37093
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in the MasterStudy LMS WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects all WordPress sites running MasterStudy LMS version 3.2.1 and earlier. The vulnerability requires an authenticated user to be tricked into clicking a malicious link.
💻 Affected Systems
- MasterStudy LMS WordPress Plugin
📦 What is this software?
Masterstudy Lms by Stylemixthemes
⚠️ Risk & Real-World Impact
Worst Case
An attacker could trick an administrator into changing plugin settings, creating/editing courses, or potentially modifying user roles and permissions.
Likely Case
Attackers could create spam courses, modify existing content, or change basic plugin configuration settings through forged requests.
If Mitigated
With proper CSRF protections, no unauthorized actions can be performed even if users click malicious links.
🎯 Exploit Status
CSRF attacks require social engineering to trick authenticated users into clicking malicious links or visiting compromised sites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find MasterStudy LMS and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Implement CSRF Protection Headers
allAdd Content Security Policy headers to help prevent CSRF attacks
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'"
🧯 If You Can't Patch
- Restrict plugin access to trusted administrators only and implement strict access controls
- Use browser extensions that block CSRF attempts and educate users about phishing risks
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for MasterStudy LMS versionCheck Version:
wp plugin list --name=masterstudy-lms --field=versionVerify Fix Applied:
Verify MasterStudy LMS version is 3.2.2 or higher in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unusual plugin configuration changes from unexpected IP addresses
- Multiple failed CSRF token validations in WordPress logs
Network Indicators:
- POST requests to MasterStudy LMS endpoints without proper referrer headers
- Requests containing suspicious parameters to plugin admin pages
SIEM Query:
source="wordpress.log" AND ("masterstudy" OR "MasterStudy LMS") AND ("csrf" OR "invalid nonce" OR "security check failed")