CVE-2025-64214

7.5 HIGH

📋 TL;DR

This CVE describes a missing authorization vulnerability in the MasterStudy LMS Pro WordPress plugin that allows attackers to access functionality not properly constrained by access controls. Specifically, it enables arbitrary content deletion without proper authentication. All WordPress sites running MasterStudy LMS Pro versions before 4.7.16 are affected.

💻 Affected Systems

Products:
  • MasterStudy LMS Pro WordPress Plugin
Versions: All versions before 4.7.16
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the Pro version of the plugin. Requires WordPress installation with the vulnerable plugin active.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could delete all course content, user data, and critical LMS materials, causing complete disruption of educational operations and potential data loss.

🟠

Likely Case

Malicious actors deleting specific courses, lessons, or user submissions to disrupt specific educational activities or target particular users.

🟢

If Mitigated

With proper network segmentation and WAF rules, impact would be limited to unauthorized deletion of some content that could be restored from backups.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability allows access to functionality without proper authorization checks, making exploitation straightforward once the endpoint is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.7.16

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/masterstudy-lms-learning-management-system-pro/vulnerability/wordpress-masterstudy-lms-pro-plugin-4-7-16-arbitrary-content-deletion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find MasterStudy LMS Pro. 4. Click 'Update Now' if available. 5. Alternatively, download version 4.7.16+ from vendor and manually update.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the vulnerable plugin until patching is possible

wp plugin deactivate masterstudy-lms-learning-management-system-pro

WAF Rule Implementation

all

Block requests to vulnerable endpoints using web application firewall

🧯 If You Can't Patch

  • Implement strict network access controls to limit plugin access to authorized users only
  • Enable comprehensive logging and monitoring for content deletion activities

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > MasterStudy LMS Pro version number

Check Version:

wp plugin get masterstudy-lms-learning-management-system-pro --field=version

Verify Fix Applied:

Confirm plugin version is 4.7.16 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to LMS endpoints
  • Multiple content deletion events from single IP
  • Failed authorization attempts on admin functions

Network Indicators:

  • HTTP requests to /wp-content/plugins/masterstudy-lms-learning-management-system-pro/ with deletion parameters
  • Unusual traffic patterns to LMS-specific endpoints

SIEM Query:

source="wordpress" AND (event="content_deleted" OR event="plugin_action") AND plugin="masterstudy-lms-pro"

🔗 References

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