CVE-2025-31827
📋 TL;DR
This path traversal vulnerability in the Fonto WordPress plugin allows attackers to download arbitrary files from the server by manipulating file paths. It affects all WordPress sites running Fonto plugin versions up to 1.2.2. The vulnerability requires authentication but could lead to sensitive file exposure.
💻 Affected Systems
- Fonto 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
Attackers could download sensitive files like wp-config.php containing database credentials, potentially leading to complete site compromise and database access.
Likely Case
Authenticated users could download arbitrary files, potentially exposing configuration files, source code, or other sensitive data stored on the server.
If Mitigated
With proper file permissions and web server restrictions, impact is limited to files accessible by the web server user.
🎯 Exploit Status
Exploit requires authenticated access but is simple to execute once authenticated. Public proof-of-concept demonstrates file download capability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.3 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/fonto/vulnerability/wordpress-fonto-plugin-1-2-2-arbitrary-file-download-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Fonto plugin and click 'Update Now'. 4. Verify version is 1.2.3 or higher.
🔧 Temporary Workarounds
Disable Fonto Plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate fonto
Restrict File Access
linuxAdd web server rules to block directory traversal attempts
# Add to .htaccess for Apache:
RewriteCond %{REQUEST_URI} \.\. [NC]
RewriteRule .* - [F]
🧯 If You Can't Patch
- Remove or disable the Fonto plugin entirely
- Implement strict file permission controls and limit web server user access to sensitive directories
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Fonto version. If version is 1.2.2 or lower, you are vulnerable.Check Version:
wp plugin get fonto --field=versionVerify Fix Applied:
After updating, verify Fonto plugin shows version 1.2.3 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '..' or '../' patterns to Fonto plugin endpoints
- Unusual file download patterns from authenticated users
Network Indicators:
- GET requests with path traversal sequences to /wp-content/plugins/fonto/ endpoints
SIEM Query:
source="web_access_logs" AND uri="*wp-content/plugins/fonto/*" AND (uri="*..*" OR uri="*../*")