CVE-2024-9314
📋 TL;DR
This vulnerability in the Rank Math SEO WordPress plugin allows authenticated attackers with Administrator privileges to perform PHP object injection via deserialization of untrusted input. While no known POP chain exists in the plugin itself, if combined with other vulnerable plugins/themes, it could lead to arbitrary file deletion, data theft, or remote code execution. Only WordPress sites using vulnerable versions of Rank Math SEO are affected.
💻 Affected Systems
- Rank Math SEO – AI SEO Tools to Dominate SEO Rankings WordPress plugin
📦 What is this software?
Seo by Rankmath
⚠️ Risk & Real-World Impact
Worst Case
If combined with a POP chain from another plugin/theme, attackers could achieve remote code execution, complete site compromise, data exfiltration, or file system destruction.
Likely Case
Limited impact due to requiring Administrator access and no known POP chain in the plugin itself - most likely would result in application errors or minor data corruption.
If Mitigated
With proper access controls and no additional vulnerable plugins/themes, impact is minimal to none.
🎯 Exploit Status
Exploitation requires Administrator credentials and depends on presence of POP chain in other installed components.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.229 and later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3161896/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Rank Math SEO plugin. 4. Click 'Update Now' if available, or manually update to version 1.0.229+. 5. Verify update completed successfully.
🔧 Temporary Workarounds
Remove vulnerable plugin
allTemporarily disable or remove the Rank Math SEO plugin until patched
wp plugin deactivate seo-by-rank-math
wp plugin delete seo-by-rank-math
Restrict administrator access
allLimit administrator accounts to only essential personnel and implement strong authentication
🧯 If You Can't Patch
- Remove the Rank Math SEO plugin entirely from production systems
- Implement strict access controls and monitoring for administrator accounts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Rank Math SEO → check version number. If version is 1.0.228 or lower, system is vulnerable.Check Version:
wp plugin get seo-by-rank-math --field=versionVerify Fix Applied:
Verify Rank Math SEO plugin version is 1.0.229 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual administrator account activity
- PHP deserialization errors in web server logs
- Unexpected plugin import/export operations
Network Indicators:
- POST requests to wp-admin/admin-ajax.php with 'set_redirections' action
- Unusual data in 'redirections' parameter
SIEM Query:
source="web_server_logs" AND ("set_redirections" OR "admin-ajax.php") AND status=200🔗 References
- https://plugins.trac.wordpress.org/browser/seo-by-rank-math/trunk/includes/admin/class-import-export.php#L507
- https://plugins.trac.wordpress.org/browser/seo-by-rank-math/trunk/includes/admin/class-import-export.php#L514
- https://plugins.trac.wordpress.org/changeset/3161896/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/af5ed47e-f183-4e72-a916-15020e2bc91e?source=cve
