CVE-2025-14881
📋 TL;DR
This vulnerability allows unauthorized access to sensitive files belonging to other users through API endpoints. Attackers can access files they shouldn't have permission to view by guessing or obtaining UUIDs of those files. This affects systems running vulnerable versions of pretix.
💻 Affected Systems
- pretix
⚠️ 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 exposure of all user-uploaded sensitive files including personal documents, payment information, or confidential business data to unauthorized parties.
Likely Case
Unauthorized access to some user files leading to data privacy violations, potential regulatory compliance issues, and loss of user trust.
If Mitigated
Limited exposure of non-critical files with minimal business impact if proper access controls and monitoring are in place.
🎯 Exploit Status
Exploitation requires knowledge of target file UUIDs but no authentication bypass.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2025.10.1
Vendor Advisory: https://pretix.eu/about/en/blog/20251218-release-2025-10-1/
Restart Required: Yes
Instructions:
1. Backup your pretix installation and database. 2. Update to pretix version 2025.10.1 or later. 3. Restart the pretix service. 4. Verify the update was successful.
🔧 Temporary Workarounds
API Endpoint Restriction
linuxTemporarily restrict or disable affected API endpoints until patching is possible.
# Configure web server (nginx example) to block specific endpoints
location ~ ^/api/v1/files/.*$ {
deny all;
}
🧯 If You Can't Patch
- Implement strict network segmentation to limit API endpoint access to trusted sources only.
- Deploy a Web Application Firewall (WAF) with rules to detect and block UUID enumeration attempts.
🔍 How to Verify
Check if Vulnerable:
Check if pretix version is older than 2025.10.1 by examining the installed version.Check Version:
python -m pretix --versionVerify Fix Applied:
Confirm installation of pretix version 2025.10.1 or newer and test that API endpoints properly validate file access permissions.📡 Detection & Monitoring
Log Indicators:
- Multiple failed file access attempts with different UUIDs
- Successful file access from unexpected user accounts or IP addresses
Network Indicators:
- Unusual patterns of API requests to file endpoints
- High volume of requests to /api/v1/files/ endpoints
SIEM Query:
source="pretix.logs" AND (uri_path="/api/v1/files/*" AND status=200) | stats count by src_ip, user_id