CVE-2025-14882
📋 TL;DR
This vulnerability allows unauthorized access to sensitive files belonging to other users through an API endpoint. Attackers can access files by guessing or obtaining UUIDs of files they shouldn't have permission to view. This affects pretix users who have file upload functionality enabled.
💻 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
Targeted exposure of specific sensitive files when attackers can guess or obtain UUIDs through other means, leading to data breaches and privacy violations.
If Mitigated
Limited exposure if proper access controls and file permission checks are implemented at the application layer.
🎯 Exploit Status
Exploitation requires knowledge of target file UUIDs, which could be obtained through enumeration, information disclosure, or other vulnerabilities.
🛠️ 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 using your package manager or deployment method. 3. Restart the pretix service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Disable file upload functionality
allTemporarily disable file upload features to prevent exploitation while planning upgrade.
Implement API rate limiting
allAdd rate limiting to API endpoints to make UUID enumeration more difficult.
🧯 If You Can't Patch
- Implement web application firewall rules to block suspicious UUID access patterns
- Add additional authentication checks at the proxy/load balancer level for file access endpoints
🔍 How to Verify
Check if Vulnerable:
Check if your pretix version is earlier than 2025.10.1. Test by attempting to access a file UUID that belongs to another user through the API.Check Version:
python -m pretix --versionVerify Fix Applied:
After updating to 2025.10.1 or later, verify that file access now properly checks user permissions before allowing access by UUID.📡 Detection & Monitoring
Log Indicators:
- Multiple failed file access attempts with different UUIDs
- Successful file access from unexpected user accounts or IP addresses
- API requests to file endpoints with UUID parameters
Network Indicators:
- Unusual patterns of file download requests
- High volume of requests to file API endpoints
SIEM Query:
source="pretix" AND (uri_path="/api/files/*" OR uri_path LIKE "%/files/%") AND status=200 | stats count by src_ip, user