CVE-2024-8123
📋 TL;DR
This vulnerability in the WP Extended WordPress plugin allows authenticated attackers with Contributor-level access or higher to duplicate posts created by other users, including administrators. Attackers can duplicate password-protected posts, revealing their contents. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- The Ultimate WordPress Toolkit – WP Extended
📦 What is this software?
Wp Extended by Wpextended
⚠️ Risk & Real-World Impact
Worst Case
Attackers could duplicate sensitive administrative posts, including password-protected content, potentially exposing confidential information, intellectual property, or draft content not intended for publication.
Likely Case
Malicious contributors or authors duplicate posts to gain unauthorized access to content, potentially stealing unpublished work or accessing restricted information.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized content duplication without broader system compromise.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once authenticated. The vulnerability is well-documented with code references available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'The Ultimate WordPress Toolkit – WP Extended'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 3.0.9+ from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the WP Extended plugin until patched
wp plugin deactivate wpextended
Restrict user roles
allTemporarily restrict Contributor and Author role assignments
🧯 If You Can't Patch
- Implement strict access controls and monitor user activity for unusual post duplication
- Disable the duplicate_post functionality via custom code or plugin filters
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → WP Extended version. If version is 3.0.8 or lower, you are vulnerable.Check Version:
wp plugin get wpextended --field=versionVerify Fix Applied:
After updating, verify plugin version shows 3.0.9 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual post duplication activity, especially between different authors
- Multiple post_create or post_update events from same user in short timeframe
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with action=wpext_duplicate_post
SIEM Query:
source="wordpress" AND (event="post_duplicate" OR uri_path="/wp-admin/admin-ajax.php") AND action="wpext_duplicate_post"🔗 References
- https://plugins.trac.wordpress.org/browser/wpextended/trunk/includes/modules/core_extensions/wpext_duplicator/wpext_duplicator.php#L48
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3145430%40wpextended%2Ftrunk&old=3134345%40wpextended%2Ftrunk&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b1e421fb-4839-4e2d-911f-e2fa8c756744?source=cve
