CVE-2022-1206
📋 TL;DR
This vulnerability allows authenticated attackers with administrator-level WordPress access to upload arbitrary files with double extensions, potentially leading to remote code execution. It affects all versions of the AdRotate Banner Manager plugin up to 5.13.2. Only WordPress sites with this specific plugin installed and configured to execute the first file extension are vulnerable.
💻 Affected Systems
- AdRotate Banner Manager 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
Full server compromise through remote code execution, allowing attackers to install backdoors, steal data, or pivot to other systems.
Likely Case
File upload leading to webshell deployment, limited to the web server's permissions and directory structure.
If Mitigated
Unauthorized file upload detected and blocked by security controls, with no execution possible.
🎯 Exploit Status
Exploitation requires administrator credentials but is technically simple once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.13.3 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/adrotate/trunk/adrotate-admin-manage.php#L418
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find AdRotate Banner Manager. 4. Click 'Update Now' if available, or manually update to version 5.13.3+. 5. Verify update completes successfully.
🔧 Temporary Workarounds
Disable plugin
allTemporarily deactivate the AdRotate Banner Manager plugin until patched
wp plugin deactivate adrotate
Restrict file uploads
linuxConfigure web server to block execution of uploaded files in wp-content/uploads directory
# Apache: Add to .htaccess in uploads directory
<FilesMatch "\.(php|php3|php4|php5|phtml|pl|py|jsp|asp|htm|html|shtml|sh|cgi)$">
Order Allow,Deny
Deny from all
</FilesMatch>
# Nginx: Add to server block
location ~* ^/wp-content/uploads/.*\.(php|php3|php4|php5|phtml|pl|py|jsp|asp|htm|html|shtml|sh|cgi)$ {
deny all;
}
🧯 If You Can't Patch
- Remove administrator access from untrusted users
- Implement web application firewall rules to block double extension file uploads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for AdRotate Banner Manager version 5.13.2 or lowerCheck Version:
wp plugin get adrotate --field=versionVerify Fix Applied:
Confirm plugin version is 5.13.3 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- File uploads to wp-content/uploads/ with double extensions like .php.jpg
- POST requests to /wp-admin/admin-ajax.php with action=adrotate_insert_media
Network Indicators:
- Unusual file upload patterns to WordPress admin endpoints
- HTTP requests with Content-Type: multipart/form-data containing suspicious filenames
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" AND parameters CONTAINS "adrotate_insert_media") AND (filename MATCHES "*.*.*")