CVE-2025-30974
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Post Grid Master WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to perform unauthorized actions. All WordPress sites running Post Grid Master version 3.4.13 or earlier are affected.
💻 Affected Systems
- Post Grid Master WordPress Plugin
📦 What is this software?
Post Grid Master by Addonmaster
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of WordPress site through privilege escalation, data manipulation, or unauthorized content publication
Likely Case
Unauthorized access to administrative functions, content modification, or data exposure
If Mitigated
No impact with proper authorization checks and access controls implemented
🎯 Exploit Status
Missing authorization vulnerabilities typically require some level of access but are straightforward to exploit once identified
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.4.13
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find Post Grid Master
4. Click 'Update Now' if available
5. If no update available, deactivate and remove the plugin
6. Install latest version from WordPress repository
🔧 Temporary Workarounds
Disable Post Grid Master Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate post-grid-master
Restrict Plugin Access via .htaccess
linuxAdd access restrictions to plugin directories
# Add to .htaccess in wp-content/plugins/post-grid-master/
Order Deny,Allow
Deny from all
🧯 If You Can't Patch
- Implement strict access controls and user role verification for all plugin functions
- Monitor and audit all access to Post Grid Master functionality and block suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Post Grid Master version 3.4.13 or earlierCheck Version:
wp plugin get post-grid-master --field=versionVerify Fix Applied:
Verify Post Grid Master version is higher than 3.4.13 in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Post Grid Master endpoints
- Unusual user activity from non-admin accounts accessing grid functions
Network Indicators:
- HTTP requests to /wp-content/plugins/post-grid-master/ from unauthorized users
- Unusual POST requests to plugin admin endpoints
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/post-grid-master/" OR plugin="post-grid-master") AND user_role!="administrator"