CVE-2024-54214
📋 TL;DR
CVE-2024-54214 is an unauthenticated arbitrary file upload vulnerability in the WordPress Revy plugin. Attackers can upload malicious files (including web shells) to vulnerable servers without authentication. This affects all WordPress sites using Revy plugin versions up to 1.18.
💻 Affected Systems
- WordPress Revy 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 compromise leading to data theft, ransomware deployment, or use as part of a botnet.
Likely Case
Web shell upload allowing persistent backdoor access, data exfiltration, and further lateral movement.
If Mitigated
Limited impact if file uploads are restricted via WAF or server configuration.
🎯 Exploit Status
Simple HTTP POST request with malicious file upload.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.19 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Revy plugin and update to version 1.19+. 4. Alternatively, deactivate and delete the plugin if not needed.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rule
allBlock file uploads to Revy plugin endpoints.
Depends on WAF platform - create rule to block POST requests to /wp-content/plugins/revy/upload/
Server File Permissions
linuxRestrict write permissions to upload directories.
chmod 755 /path/to/wordpress/wp-content/plugins/revy/upload/
chown www-data:www-data /path/to/wordpress/wp-content/plugins/revy/upload/
🧯 If You Can't Patch
- Disable or remove the Revy plugin immediately.
- Implement strict file upload filtering at the web server level.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Revy version. If version is 1.18 or lower, you are vulnerable.Check Version:
wp plugin list --name=revy --field=version (if WP-CLI installed)Verify Fix Applied:
Confirm Revy plugin version is 1.19 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- POST requests to /wp-content/plugins/revy/upload/ with file uploads
- Unusual file creations in upload directories
- .php files in non-PHP expected directories
Network Indicators:
- HTTP POST to Revy upload endpoints with file attachments
- Unusual outbound connections from web server
SIEM Query:
source="web_server" AND (uri_path="/wp-content/plugins/revy/upload/" AND http_method="POST")