CVE-2025-11967
📋 TL;DR
The Mail Mint WordPress plugin allows authenticated administrators to upload arbitrary files due to missing file type validation. This vulnerability can lead to remote code execution on affected WordPress sites. Only sites running Mail Mint versions up to 1.18.10 are affected.
💻 Affected Systems
- Mail Mint 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 via remote code execution, allowing attackers to install backdoors, steal data, or pivot to other systems.
Likely Case
Attackers upload web shells to gain persistent access, deface websites, or install cryptocurrency miners.
If Mitigated
Limited impact if proper file upload restrictions and web application firewalls are in place.
🎯 Exploit Status
Exploitation requires administrator credentials but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.18.11
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3389643/mail-mint/tags/1.18.11/app/API/Actions/Admin/Contact/ContactImportAction.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Mail Mint and click 'Update Now'. 4. Verify version shows 1.18.11 or higher.
🔧 Temporary Workarounds
Disable Mail Mint Plugin
allTemporarily disable the vulnerable plugin until patching is possible.
wp plugin deactivate mail-mint
Restrict File Uploads via .htaccess
linuxBlock execution of uploaded files in WordPress uploads directory.
<FilesMatch "\.(php|php5|php7|phtml|phar)$">
Order Deny,Allow
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Implement strict file upload validation at web server level
- Monitor administrator accounts for suspicious activity and implement multi-factor authentication
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Mail Mint version 1.18.10 or lower.Check Version:
wp plugin list --name=mail-mint --field=versionVerify Fix Applied:
Confirm Mail Mint version is 1.18.11 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /wp-content/uploads/mail-mint/ directory
- POST requests to /wp-admin/admin-ajax.php with action=mailmint_contact_import
Network Indicators:
- HTTP POST requests with file uploads to WordPress admin endpoints from unexpected sources
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" AND parameters.action="mailmint_contact_import")