CVE-2025-12057
📋 TL;DR
The WavePlayer WordPress plugin before version 3.8.0 contains an unauthenticated arbitrary file upload vulnerability that leads to remote code execution. This allows attackers without any credentials to upload malicious files to the server and execute arbitrary code. All WordPress sites using vulnerable versions of WavePlayer are affected.
💻 Affected Systems
- WavePlayer 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 allowing attackers to execute arbitrary code, install backdoors, steal data, deface websites, or pivot to internal networks.
Likely Case
Website defacement, malware distribution, credential theft, or cryptocurrency mining malware installation.
If Mitigated
Limited impact with proper web application firewalls, file upload restrictions, and server hardening in place.
🎯 Exploit Status
Exploitation is straightforward with publicly available proof-of-concept code. The vulnerability requires no authentication and minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.8.0
Vendor Advisory: https://wpscan.com/vulnerability/110db433-01ec-47ea-b74f-c3faa1757a3c/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find WavePlayer and update to version 3.8.0 or later. 4. Verify update completed successfully.
🔧 Temporary Workarounds
Disable WavePlayer Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate waveplayer
Restrict AJAX Endpoint Access
linuxBlock access to the vulnerable AJAX endpoint using web server rules
# Apache: RewriteRule ^/wp-admin/admin-ajax\.php.*waveplayer.* - [F]
# Nginx: location ~* /wp-admin/admin-ajax\.php.*waveplayer { deny all; }
🧯 If You Can't Patch
- Remove WavePlayer plugin completely from the WordPress installation
- Implement strict file upload restrictions and web application firewall rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for WavePlayer versionCheck Version:
wp plugin get waveplayer --field=versionVerify Fix Applied:
Verify WavePlayer plugin version is 3.8.0 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-admin/admin-ajax.php with waveplayer parameters
- File uploads to unexpected directories
- Execution of suspicious PHP files in uploads directory
Network Indicators:
- HTTP POST requests to admin-ajax.php containing 'action=waveplayer_copy' or similar parameters
- Unusual outbound connections from web server after file upload
SIEM Query:
source="web_logs" AND uri_path="/wp-admin/admin-ajax.php" AND (query_string="*waveplayer*" OR post_data="*waveplayer*")