CVE-2024-8106
📋 TL;DR
This vulnerability in the WP Extended WordPress plugin allows authenticated attackers with Subscriber-level access or higher to extract sensitive user data including usernames, hashed passwords, and email addresses. All WordPress sites using vulnerable versions of this plugin are affected. The exposure occurs through the download_user_ajax function.
💻 Affected Systems
- The Ultimate WordPress Toolkit – WP Extended
📦 What is this software?
Wp Extended by Wpextended
⚠️ Risk & Real-World Impact
Worst Case
Attackers could obtain password hashes for all users, potentially leading to credential cracking, account takeover, and lateral movement within the WordPress environment.
Likely Case
Attackers with subscriber accounts could harvest user email addresses and usernames for phishing campaigns or credential stuffing attacks against other services.
If Mitigated
With proper access controls and monitoring, the impact would be limited to detection of unauthorized data access attempts.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple. The vulnerability is publicly documented with code references.
🛠️ 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 available. 5. Alternatively, download version 3.0.9+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the WP Extended plugin until patched
wp plugin deactivate wpextended
Restrict user registration
allDisable new user registration to prevent attacker account creation
Add define('WP_ALLOW_REGISTRATION', false); to wp-config.php
🧯 If You Can't Patch
- Remove the plugin entirely if not essential
- Implement strict monitoring for unauthorized data export attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'The Ultimate WordPress Toolkit – WP Extended' version 3.0.8 or lowerCheck Version:
wp plugin get wpextended --field=versionVerify Fix Applied:
Verify plugin version is 3.0.9 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual AJAX requests to download_user_ajax endpoint
- Multiple user data export requests from single accounts
- wp-admin/admin-ajax.php requests with action=download_user
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with download_user parameters
- Large data exports from WordPress instances
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" AND post_data CONTAINS "action=download_user")🔗 References
- https://plugins.trac.wordpress.org/browser/wpextended/trunk/includes/modules/core_extensions/wpext_export_users/wpext_export_users.php#L54
- 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/593eb5bc-59f9-4944-b147-4ba66d49abe6?source=cve
