CVE-2024-12209
📋 TL;DR
The WP Umbrella WordPress plugin has a critical Local File Inclusion vulnerability that allows unauthenticated attackers to include and execute arbitrary PHP files on the server. This can lead to complete system compromise through remote code execution. All WordPress sites using WP Umbrella plugin versions up to 2.17.0 are affected.
💻 Affected Systems
- WP Umbrella: Update Backup Restore & Monitoring 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
Complete server takeover - attacker gains full control of the web server, can steal all data, install backdoors, pivot to internal networks, and use the server for further attacks.
Likely Case
Website defacement, data theft, malware installation, and use of compromised server for cryptocurrency mining or DDoS attacks.
If Mitigated
Limited impact if proper file permissions prevent PHP execution in upload directories and web server runs with minimal privileges.
🎯 Exploit Status
Simple HTTP request with crafted filename parameter can trigger exploitation. Public exploit code is available in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.17.1 and later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3202883%40wp-health&new=3202883%40wp-health&sfp_email=&sfph_mail=
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find WP Umbrella plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 2.17.1+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable WP Umbrella plugin
linuxTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wp-health
Web Application Firewall rule
allBlock requests containing 'umbrella-restore' action with filename parameter
# WAF specific configuration required
🧯 If You Can't Patch
- Immediately disable WP Umbrella plugin via WordPress admin or rename plugin directory
- Implement strict file upload restrictions and disable PHP execution in upload directories
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for WP Umbrella version. If version is 2.17.0 or lower, system is vulnerable.Check Version:
wp plugin list --name=wp-health --field=versionVerify Fix Applied:
Verify WP Umbrella plugin version is 2.17.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /wp-admin/admin-ajax.php with action=umbrella-restore and filename parameter
- Unusual file inclusion attempts in web server logs
- PHP errors related to file inclusion
Network Indicators:
- POST requests to admin-ajax.php with umbrella-restore action
- Unusual file paths in URL parameters
SIEM Query:
web.url:*admin-ajax.php* AND web.query:action=umbrella-restore*🔗 References
- https://plugins.trac.wordpress.org/browser/wp-health/tags/v2.16.4/src/Actions/RestoreRouter.php#L45
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3202883%40wp-health&new=3202883%40wp-health&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c74ce3e8-cab9-4cc6-a1ad-1e51f7268474?source=cve
