CVE-2025-59577
📋 TL;DR
A race condition vulnerability in MasterStudy LMS WordPress plugin allows attackers to exploit improper synchronization when multiple processes access shared resources simultaneously. This affects all WordPress sites using MasterStudy LMS versions up to 3.6.20, potentially leading to data corruption or unauthorized actions.
💻 Affected Systems
- MasterStudy LMS WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate course enrollments, modify user data, bypass payment systems, or corrupt learning management data through timing-based exploitation of concurrent operations.
Likely Case
Limited data manipulation or inconsistent state in LMS operations, potentially affecting course registrations, user progress tracking, or payment processing.
If Mitigated
Minor performance issues or occasional data inconsistencies that don't compromise core functionality.
🎯 Exploit Status
Race conditions require precise timing and understanding of plugin's concurrent operations. No public exploits available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.6.21 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find MasterStudy LMS plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
WordPressTemporarily disable MasterStudy LMS plugin until patched
wp plugin deactivate masterstudy-lms-learning-management-system
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block race condition exploitation patterns
- Restrict plugin access to authenticated users only and implement rate limiting on critical endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → MasterStudy LMS → Version number. If version is 3.6.20 or lower, system is vulnerable.Check Version:
wp plugin get masterstudy-lms-learning-management-system --field=versionVerify Fix Applied:
Verify plugin version is 3.6.21 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple rapid requests to same LMS endpoints from single IP
- Concurrent enrollment/registration attempts with similar timestamps
- Database deadlock or lock timeout errors in WordPress logs
Network Indicators:
- Unusual burst traffic patterns to /wp-content/plugins/masterstudy-lms/ endpoints
- Multiple parallel HTTP requests to course enrollment or user management endpoints
SIEM Query:
source="wordpress.log" AND ("masterstudy-lms" OR "MasterStudy") AND ("deadlock" OR "timeout" OR "concurrent")