CVE-2022-23616
📋 TL;DR
CVE-2022-23616 allows unprivileged users to execute arbitrary code on XWiki Platform instances by injecting Groovy scripts into their profiles and triggering the password reset feature. This vulnerability affects XWiki Platform versions before 13.1RC1. Attackers can achieve remote code execution with user-level privileges.
💻 Affected Systems
- XWiki Platform
📦 What is this software?
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
Xwiki by Xwiki
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, access sensitive data, install malware, or pivot to other systems.
Likely Case
Remote code execution leading to data theft, privilege escalation, or deployment of ransomware/cryptominers.
If Mitigated
Limited impact if proper network segmentation and least privilege principles are enforced, though RCE still poses significant risk.
🎯 Exploit Status
Exploitation requires creating a user account first, then using the password reset feature. Public advisory includes technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: XWiki 13.1RC1 and later
Vendor Advisory: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mgjw-2wrp-r535
Restart Required: Yes
Instructions:
1. Backup your XWiki instance. 2. Upgrade to XWiki 13.1RC1 or later. 3. Restart the XWiki service. 4. Verify the patch is applied.
🔧 Temporary Workarounds
Disable ResetPassword Feature
allDelete the XWiki/ResetPassword page to completely disable the vulnerable feature
Delete page 'XWiki/ResetPassword' via XWiki administration interface
Modify ResetPassword Script
allReplace the vulnerable script with a simple email contact form
Edit page 'XWiki/ResetPassword' and replace script content with safe alternative
🧯 If You Can't Patch
- Implement strict network access controls to limit XWiki exposure
- Disable user registration and monitor existing user accounts for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check XWiki version via administration panel or by examining version files. Versions before 13.1RC1 are vulnerable.Check Version:
Check XWiki version in administration panel or via web interface at /xwiki/bin/view/Main/WebHomeVerify Fix Applied:
Verify version is 13.1RC1 or later and test that password reset functionality works without executing arbitrary scripts.📡 Detection & Monitoring
Log Indicators:
- Unusual Groovy script execution in user profiles
- Multiple password reset attempts from single user
- Suspicious system commands in XWiki logs
Network Indicators:
- Unexpected outbound connections from XWiki server
- Traffic to known malicious IPs
SIEM Query:
source="xwiki.log" AND ("Groovy script" OR "ResetPassword" OR "programming rights")