CVE-2025-6592
📋 TL;DR
This vulnerability in Wikimedia Foundation's AbuseFilter allows improper access control through the AuthManager.php component. It affects systems running AbuseFilter versions before 1.43.2 and 1.44.0, potentially enabling unauthorized actions by authenticated users.
💻 Affected Systems
- Wikimedia AbuseFilter
⚠️ 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
Attackers could bypass AbuseFilter restrictions to perform unauthorized content modifications, account manipulations, or privilege escalation within the wiki system.
Likely Case
Authenticated users could circumvent AbuseFilter rules to make edits that would normally be blocked, potentially allowing spam, vandalism, or policy violations.
If Mitigated
With proper access controls and monitoring, impact would be limited to minor policy violations that can be reverted through normal wiki moderation processes.
🎯 Exploit Status
Exploitation requires authenticated access to the wiki system. The vulnerability involves improper access control in the authentication flow.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.43.2 or 1.44.0
Vendor Advisory: https://phabricator.wikimedia.org/T391218
Restart Required: No
Instructions:
1. Update AbuseFilter extension to version 1.43.2 or 1.44.0. 2. For MediaWiki installations, update via extension manager or manual installation. 3. Clear any caches if applicable.
🔧 Temporary Workarounds
Temporarily disable AbuseFilter
allDisable the AbuseFilter extension to prevent exploitation while patching
Edit LocalSettings.php and comment out wfLoadExtension('AbuseFilter');
Restrict user permissions
allTemporarily reduce edit permissions for non-trusted users
Use MediaWiki's user rights management to restrict editing capabilities
🧯 If You Can't Patch
- Implement strict monitoring of AbuseFilter logs for unusual bypass patterns
- Increase manual review of edits from non-privileged users
🔍 How to Verify
Check if Vulnerable:
Check AbuseFilter version in MediaWiki's Special:Version page or extension configurationCheck Version:
Check MediaWiki's Special:Version page or examine extension.json in AbuseFilter directoryVerify Fix Applied:
Confirm AbuseFilter version is 1.43.2 or higher, or 1.44.0📡 Detection & Monitoring
Log Indicators:
- AbuseFilter bypass attempts in MediaWiki logs
- Unusual edit patterns that should have been blocked by filters
Network Indicators:
- Unusual API calls to authentication endpoints
- Suspicious edit requests from authenticated users
SIEM Query:
source="mediawiki" AND ("AbuseFilter" AND "bypass" OR "authmanager" AND "unauthorized")