CVE-2024-13767
📋 TL;DR
The Live2DWebCanvas WordPress plugin has an arbitrary file deletion vulnerability that allows authenticated attackers with Subscriber-level access or higher to delete any file on the server. This can lead to remote code execution by deleting critical files like wp-config.php. All WordPress sites using this plugin up to version 1.9.11 are affected.
💻 Affected Systems
- Live2DWebCanvas 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 site compromise via remote code execution by deleting wp-config.php or other critical files, leading to data theft, defacement, or malware installation.
Likely Case
Site disruption or data loss from deletion of important files, potentially causing downtime or content loss.
If Mitigated
Limited impact if proper access controls and file permissions are in place, though file deletion could still occur.
🎯 Exploit Status
Exploitation requires authenticated access but only Subscriber-level privileges, which are commonly granted to site visitors who register.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.9.12 or later
Vendor Advisory: https://wordpress.org/plugins/live-2d/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Live2DWebCanvas plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.9.12+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate live-2d
Restrict User Registration
allDisable new user registration to prevent attackers from obtaining Subscriber accounts
Set 'Anyone can register' to false in WordPress Settings > General
🧯 If You Can't Patch
- Remove Subscriber role from all users except trusted administrators
- Implement web application firewall rules to block requests to the vulnerable ClearFiles() function
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Live2DWebCanvas version 1.9.11 or earlierCheck Version:
wp plugin get live-2d --field=versionVerify Fix Applied:
Confirm plugin version is 1.9.12 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with action=clear_files parameter
- File deletion events in server logs for unexpected files
- Failed file operations in WordPress debug logs
Network Indicators:
- Unusual POST requests from Subscriber-level users to admin-ajax.php
- Patterns of file deletion attempts
SIEM Query:
source="web_server" AND uri="/wp-admin/admin-ajax.php" AND method="POST" AND params.action="clear_files"