CVE-2024-5882
📋 TL;DR
This vulnerability in the Ultimate Classified Listings WordPress plugin allows unauthenticated attackers to access arbitrary PHP files on the server through improper validation of URL parameters. It affects WordPress sites running plugin versions before 1.3, potentially exposing sensitive server files and configuration data.
💻 Affected Systems
- Ultimate Classified Listings WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive PHP files including configuration files with database credentials, source code, or other server files, leading to complete system compromise.
Likely Case
Unauthenticated attackers accessing sensitive server files, potentially exposing database credentials, configuration details, or other sensitive information.
If Mitigated
Limited exposure of non-critical files or failed exploitation attempts if proper file permissions and web server configurations are in place.
🎯 Exploit Status
Exploitation requires simple HTTP requests with crafted parameters to the listings page endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3
Vendor Advisory: https://wpscan.com/vulnerability/5e8d7808-8f3e-4fc9-a1e7-e108da031ca7/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Ultimate Classified Listings plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 1.3+ from WordPress repository and replace existing plugin files.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the Ultimate Classified Listings plugin until patched
wp plugin deactivate ultimate-classified-listings
Web Application Firewall rule
linuxBlock requests containing suspicious ucl_page or layout parameters
ModSecurity rule: SecRule ARGS_GET "(ucl_page|layout)" "phase:1,deny,status:403,id:1001"
🧯 If You Can't Patch
- Implement strict file permissions on PHP files and sensitive directories
- Deploy web application firewall to block directory traversal attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Ultimate Classified Listings version number. If version is below 1.3, system is vulnerable.Check Version:
wp plugin get ultimate-classified-listings --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /wp-content/plugins/ultimate-classified-listings/ with ucl_page or layout parameters containing path traversal sequences (../)
Network Indicators:
- Unusual file access patterns to PHP files via web requests, especially from unauthenticated users
SIEM Query:
web_access_logs | where url contains "ultimate-classified-listings" and (url contains "ucl_page" or url contains "layout") and (url contains ".." or url contains ".php")