CVE-2025-39491
📋 TL;DR
CVE-2025-39491 is a path traversal vulnerability in the WHMPress WordPress plugin that allows attackers to read arbitrary files on the server. This affects WordPress sites running WHMPress versions 6.2 through revision 9. Attackers can exploit this without authentication to access sensitive system files.
💻 Affected Systems
- WHMPress 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 compromise through reading sensitive configuration files (like wp-config.php containing database credentials), followed by database takeover and potential remote code execution.
Likely Case
Unauthorized access to sensitive files including WordPress configuration, server logs, and potentially user data, leading to data breach and site defacement.
If Mitigated
Limited file access restricted by server permissions, with no critical configuration files exposed due to proper file system hardening.
🎯 Exploit Status
The vulnerability is publicly documented with proof-of-concept details available, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Revision 10 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WHMPress and click 'Update Now'. 4. Verify version is revision 10 or later. 5. Clear any caching plugins.
🔧 Temporary Workarounds
Disable WHMPress Plugin
allTemporarily deactivate the vulnerable plugin until patching is possible
wp plugin deactivate whmpress
Web Application Firewall Rule
allBlock path traversal patterns in requests to WHMPress endpoints
🧯 If You Can't Patch
- Immediately disable the WHMPress plugin via WordPress admin or command line
- Implement strict file system permissions to limit readable directories
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > WHMPress version. If version is between 6.2 and revision 9, you are vulnerable.Check Version:
wp plugin get whmpress --field=versionVerify Fix Applied:
Verify WHMPress version is revision 10 or later in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in web server logs
- Requests containing '../' or directory traversal sequences to WHMPress endpoints
- Multiple failed attempts to access sensitive file paths
Network Indicators:
- HTTP requests with path traversal payloads to /wp-content/plugins/whmpress/ endpoints
- Unusual file download patterns from the plugin directory
SIEM Query:
source="web_server" AND (uri="*../*" OR uri="*..\\*" OR uri="*%2e%2e%2f*") AND uri="*/wp-content/plugins/whmpress/*"