CVE-2025-22204
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Joomla websites using the Sourcerer extension. Attackers can exploit improper code generation controls to run malicious commands on the server. All Joomla sites with Sourcerer extension versions before 11.0.0 are affected.
💻 Affected Systems
- Joomla Sourcerer Extension
📦 What is this software?
Sourcerer by Regularlabs
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise allowing attackers to install malware, steal data, deface websites, or use the server for further attacks.
Likely Case
Website defacement, data theft, or installation of backdoors for persistent access.
If Mitigated
Limited impact if proper network segmentation and web application firewalls are in place.
🎯 Exploit Status
CWE-94 vulnerabilities typically allow straightforward exploitation once details are known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 11.0.0
Vendor Advisory: https://regularlabs.com/sourcerer
Restart Required: No
Instructions:
1. Log into Joomla admin panel. 2. Navigate to Extensions > Manage > Update. 3. Update Sourcerer extension to version 11.0.0 or later. 4. Alternatively, download from vendor site and install manually.
🔧 Temporary Workarounds
Disable Sourcerer Extension
allTemporarily disable the vulnerable extension until patching is possible.
Navigate to Extensions > Plugins > Search for 'Sourcerer' > Set Status to Disabled
Remove Sourcerer Extension
allCompletely uninstall the extension if not required.
Navigate to Extensions > Manage > Manage > Select Sourcerer > Uninstall
🧯 If You Can't Patch
- Implement strict web application firewall rules to block suspicious PHP code execution attempts.
- Restrict access to Joomla admin interface using IP whitelisting and strong authentication.
🔍 How to Verify
Check if Vulnerable:
Check Sourcerer extension version in Joomla admin panel under Extensions > Manage > Manage.Check Version:
No CLI command; check via Joomla admin interface Extensions > Manage > Manage.Verify Fix Applied:
Confirm Sourcerer extension version is 11.0.0 or higher in the extensions manager.📡 Detection & Monitoring
Log Indicators:
- Unusual PHP execution patterns in web server logs
- Suspicious POST requests containing code snippets
- Unexpected file creation in Joomla directories
Network Indicators:
- HTTP requests with encoded PHP code in parameters
- Unusual outbound connections from web server
SIEM Query:
web.url:*sourcerer* AND (web.method:POST OR web.status:200) AND web.uri:*php*