CVE-2025-68937
📋 TL;DR
This vulnerability in Forgejo allows attackers to write to unintended files through mishandling of symlink destinations in template repositories. Attackers could potentially obtain server shell access by exploiting this flaw. All Forgejo instances running vulnerable versions are affected.
💻 Affected Systems
- Forgejo
⚠️ 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
Remote code execution leading to complete server compromise, data exfiltration, and lateral movement within the network.
Likely Case
Unauthorized file writes allowing modification of configuration files, injection of malicious code, or privilege escalation.
If Mitigated
Limited impact with proper file system permissions and isolation controls in place.
🎯 Exploit Status
Exploitation requires some repository access or creation privileges; detailed technical analysis not yet publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 13.0.2 or 11.0.7 (for LTS)
Vendor Advisory: https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/13.0.2.md
Restart Required: Yes
Instructions:
1. Backup your Forgejo instance and database. 2. Stop the Forgejo service. 3. Update to Forgejo 13.0.2 or 11.0.7 (LTS). 4. Restart the Forgejo service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Disable template repository functionality
allTemporarily disable template repository creation and usage to prevent exploitation
# Modify Forgejo configuration to disable template repositories
# Edit app.ini and set [repository] ENABLE_TEMPLATE_REPOSITORY = false
Restrict repository creation
allLimit who can create repositories to trusted users only
# In Forgejo admin panel, adjust repository creation permissions
# Settings -> Repository -> Repository Creation
🧯 If You Can't Patch
- Implement strict file system permissions and isolation for Forgejo data directories
- Monitor for suspicious file write activities and repository template operations
🔍 How to Verify
Check if Vulnerable:
Check your Forgejo version against affected versions (before 13.0.2 or 11.0.7 for LTS)Check Version:
forgejo --version or check the web interface admin panelVerify Fix Applied:
Confirm version is 13.0.2 or higher, or 11.0.7 or higher for LTS📡 Detection & Monitoring
Log Indicators:
- Unusual template repository operations
- File write attempts outside expected directories
- Symlink creation in repository contexts
Network Indicators:
- Unusual API calls to repository/template endpoints
- Suspicious git operations from unexpected sources
SIEM Query:
source="forgejo.log" AND ("template" OR "symlink") AND ("write" OR "create")🔗 References
- https://blog.gitea.com/release-of-1.24.7/
- https://codeberg.org/forgejo/forgejo/milestone/27340
- https://codeberg.org/forgejo/forgejo/milestone/29156
- https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/11.0.7.md
- https://codeberg.org/forgejo/forgejo/src/branch/forgejo/release-notes-published/13.0.2.md
- https://codeberg.org/forgejo/security-announcements/issues/43
