CVE-2025-15158
📋 TL;DR
The WP Enable WebP WordPress plugin has a vulnerability that allows authenticated attackers with Author-level permissions or higher to upload arbitrary files due to improper file type validation. This can lead to remote code execution on affected WordPress sites. All versions up to and including 1.0 are vulnerable.
💻 Affected Systems
- WP Enable WebP 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
Remote code execution leading to complete site compromise, data theft, malware distribution, or site defacement.
Likely Case
Unauthorized file upload leading to backdoor installation, privilege escalation, or data manipulation.
If Mitigated
Limited impact if proper file upload restrictions and user role management are in place.
🎯 Exploit Status
Exploitation requires authenticated access with Author privileges or higher. The vulnerability is in the file upload functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.0 (check WordPress plugin repository)
Vendor Advisory: https://plugins.trac.wordpress.org/browser/wp-enable-webp/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WP Enable WebP' plugin. 4. Click 'Update Now' if available. 5. If no update is available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable Plugin
allDeactivate the vulnerable plugin to prevent exploitation.
wp plugin deactivate wp-enable-webp
Restrict File Uploads
linuxImplement server-side file upload restrictions via .htaccess or web server configuration.
# Add to .htaccess:
<FilesMatch "\.(php|phtml|php3|php4|php5|php7|phps|php8|inc|pl|py|jsp|asp|aspx|sh|cgi)">
Order allow,deny
Deny from all
</FilesMatch>
🧯 If You Can't Patch
- Remove Author and higher role permissions from untrusted users
- Implement web application firewall rules to block suspicious file uploads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WP Enable WebP version 1.0 or earlier.Check Version:
wp plugin list --name=wp-enable-webp --field=versionVerify Fix Applied:
Verify plugin is either updated to version after 1.0 or completely removed from the plugins directory.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to WordPress media library
- POST requests to wp-admin/admin-ajax.php with file upload parameters
- Files with double extensions or executable extensions in uploads directory
Network Indicators:
- HTTP POST requests with file uploads to WordPress admin endpoints from Author-level users
SIEM Query:
source="wordpress.log" AND ("wp-enable-webp" OR "admin-ajax.php") AND ("upload" OR "file")