CVE-2022-0440
📋 TL;DR
This vulnerability in the Catch Themes Demo Import WordPress plugin allows high-privilege administrators to upload arbitrary PHP files, leading to remote code execution. It affects WordPress sites using vulnerable plugin versions, even those with security hardening constants enabled. Only administrators can exploit this vulnerability.
💻 Affected Systems
- Catch Themes Demo Import WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise with attacker gaining full control over the WordPress installation and potentially the underlying server through arbitrary PHP file upload and execution.
Likely Case
Administrator account compromise leading to website defacement, data theft, or installation of backdoors and malware.
If Mitigated
Limited impact if proper access controls restrict administrator accounts and file uploads are monitored, though RCE potential remains.
🎯 Exploit Status
Exploitation requires administrator privileges. Public proof-of-concept exists via WPScan references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1.1
Vendor Advisory: https://wpscan.com/vulnerability/2239095f-8a66-4a5d-ab49-1662a40fddf1
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Catch Themes Demo Import' plugin. 4. Update to version 2.1.1 or later. 5. Verify update completes successfully.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Catch Themes Demo Import plugin until patched.
wp plugin deactivate catch-themes-demo-import
Restrict administrator access
allImplement strict access controls and monitoring for administrator accounts.
🧯 If You Can't Patch
- Remove administrator privileges from untrusted users
- Implement web application firewall rules to block PHP file uploads through the plugin
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Catch Themes Demo Import' version lower than 2.1.1.Check Version:
wp plugin get catch-themes-demo-import --field=versionVerify Fix Applied:
Confirm plugin version is 2.1.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual PHP file uploads via plugin endpoints
- Administrator account performing unexpected import operations
Network Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with demo import actions
- Unexpected file uploads with .php extensions
SIEM Query:
source="wordpress.log" AND "catch-themes-demo-import" AND "import" AND ".php"