CVE-2025-12998
📋 TL;DR
This CVE describes an improper authentication vulnerability in the TYPO3 extension 'Modules' (codingms/modules). It allows attackers to bypass authentication mechanisms and potentially gain unauthorized access to administrative functions. Affected are TYPO3 installations using vulnerable versions of this extension.
💻 Affected Systems
- TYPO3 Extension 'Modules' (codingms/modules)
⚠️ 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
Complete compromise of the TYPO3 backend, allowing attackers to create/delete content, install malicious extensions, or execute arbitrary code.
Likely Case
Unauthorized access to backend modules, content manipulation, privilege escalation, or data exposure.
If Mitigated
Limited impact if proper network segmentation, strong authentication, and monitoring are in place.
🎯 Exploit Status
CWE-287 typically involves authentication bypass that doesn't require complex exploitation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.3.11, 5.7.4, 6.4.2, 7.5.5
Vendor Advisory: https://typo3.org/security/advisory/typo3-ext-sa-2025-015
Restart Required: No
Instructions:
1. Update the extension via TYPO3 Extension Manager or Composer. 2. For version 4.x: Update to 4.3.11. 3. For version 5.x: Update to 5.7.4. 4. For version 6.x: Update to 6.4.2. 5. For version 7.x: Update to 7.5.5. 6. Clear TYPO3 caches after update.
🔧 Temporary Workarounds
Disable Extension
allTemporarily disable the vulnerable extension until patching is possible
typo3cms extension:deactivate modules
Restrict Access
allImplement IP whitelisting for TYPO3 backend access
# Configure in web server (e.g., Apache .htaccess or Nginx config) to restrict /typo3 access
🧯 If You Can't Patch
- Disable the 'Modules' extension completely
- Implement strict network access controls to TYPO3 backend
🔍 How to Verify
Check if Vulnerable:
Check extension version in TYPO3 Extension Manager or via composer show codingms/modulesCheck Version:
composer show codingms/modules | grep version OR check in TYPO3 Extension ManagerVerify Fix Applied:
Verify extension version is 4.3.11, 5.7.4, 6.4.2, or 7.5.5 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts to TYPO3 backend
- Access to admin modules from unexpected IPs
- Failed login attempts followed by successful access
Network Indicators:
- HTTP requests to /typo3/mod.php or extension-specific endpoints without proper authentication
SIEM Query:
source="typo3.log" AND ("authentication bypass" OR "modules extension" OR "unexpected backend access")