CVE-2025-12092
📋 TL;DR
The CYAN Backup WordPress plugin has an arbitrary file deletion vulnerability in versions up to 2.5.4. Authenticated attackers with Administrator privileges can delete any file on the server, potentially leading to remote code execution by deleting critical files like wp-config.php. This affects all WordPress sites using vulnerable versions of the plugin.
💻 Affected Systems
- CYAN Backup 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 site compromise via remote code execution after deleting wp-config.php or other critical files, leading to data loss, defacement, or malware installation.
Likely Case
Site disruption or data loss from deletion of important files, potentially causing downtime or requiring restoration from backups.
If Mitigated
Limited impact if proper access controls and file permissions prevent unauthorized administrator accounts from exploiting the vulnerability.
🎯 Exploit Status
Exploitation requires administrator credentials but is technically simple once access is obtained. The vulnerability is well-documented in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.5
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3390065/cyan-backup/tags/2.5.5/includes/page-backups.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find CYAN Backup and click 'Update Now'. 4. Verify version shows 2.5.5 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the CYAN Backup plugin until patched
wp plugin deactivate cyan-backup
Restrict Administrator Access
allReview and limit administrator accounts to trusted users only
🧯 If You Can't Patch
- Remove the CYAN Backup plugin completely from the WordPress installation
- Implement strict file permissions (e.g., 644 for files, 755 for directories) and monitor for unauthorized file deletion attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → CYAN Backup version. If version is 2.5.4 or lower, you are vulnerable.Check Version:
wp plugin get cyan-backup --field=versionVerify Fix Applied:
After updating, confirm CYAN Backup version shows 2.5.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual file deletion events in WordPress or web server logs
- Multiple failed login attempts followed by successful administrator login
Network Indicators:
- HTTP POST requests to /wp-admin/admin.php?page=cyan-backup with file deletion parameters
SIEM Query:
source="wordpress.log" AND "cyan-backup" AND "delete" AND NOT "backup"