CVE-2025-25155
📋 TL;DR
This path traversal vulnerability in the efreja Music Sheet Viewer WordPress plugin allows attackers to read arbitrary files on the server by manipulating file paths. It affects all versions up to and including 4.1. WordPress sites using this plugin are vulnerable.
💻 Affected Systems
- efreja Music Sheet Viewer 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 read sensitive files like wp-config.php containing database credentials, SSH keys, or other configuration files, potentially leading to full system compromise.
Likely Case
Attackers will read WordPress configuration files to obtain database credentials and escalate access, or read other sensitive server files.
If Mitigated
With proper file permissions and web server restrictions, impact is limited to readable files within the web root directory.
🎯 Exploit Status
Exploitation requires understanding of path traversal techniques but is straightforward for experienced attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 4.1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Music Sheet Viewer'. 4. Click 'Update Now' if update available. 5. If no update, deactivate and remove plugin immediately.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate music-sheet-viewer
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block path traversal patterns
- Restrict file system permissions to minimum required for web server operation
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Music Sheet Viewer version 4.1 or earlierCheck Version:
wp plugin list --name=music-sheet-viewer --field=versionVerify Fix Applied:
Verify plugin version is higher than 4.1 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in web server logs, especially requests containing '../' sequences to plugin endpoints
Network Indicators:
- HTTP requests to /wp-content/plugins/music-sheet-viewer/ with path traversal payloads
SIEM Query:
web.url:*music-sheet-viewer* AND (web.url:*..%2f* OR web.url:*..%5c*)