CVE-2025-69601
📋 TL;DR
A directory traversal vulnerability in 66biolinks v44.0.0 allows attackers to write files outside intended directories when uploading ZIP archives. This can lead to content defacement, file overwriting, and potentially more severe impacts in certain deployments. All users of 66biolinks v44.0.0 with the Static Sites feature enabled are affected.
💻 Affected Systems
- 66biolinks
📦 What is this software?
66biolinks by Altumcode
⚠️ Risk & Real-World Impact
Worst Case
An attacker could overwrite critical system files, gain remote code execution, or compromise the entire server if sensitive files are overwritten.
Likely Case
Content defacement through overwriting HTML files, potential data manipulation, and limited file system access.
If Mitigated
Limited to defacement of static content with proper file permissions and restricted upload access.
🎯 Exploit Status
Exploitation requires access to upload ZIP files via the Static Sites feature.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Monitor vendor updates and apply when released.
🔧 Temporary Workarounds
Disable Static Sites Feature
allTemporarily disable the Static Sites feature to prevent ZIP uploads.
Implement ZIP Validation
allAdd server-side validation to sanitize file paths in ZIP archives before extraction.
🧯 If You Can't Patch
- Restrict access to the Static Sites upload functionality to trusted users only.
- Implement file system permissions to limit write access outside intended directories.
🔍 How to Verify
Check if Vulnerable:
Check if running 66biolinks v44.0.0 and if Static Sites feature is enabled.Check Version:
Check the application version in the admin panel or configuration files.Verify Fix Applied:
Verify that ZIP file paths are validated and sanitized during extraction.📡 Detection & Monitoring
Log Indicators:
- Unusual ZIP uploads, file write attempts outside expected directories, or path traversal sequences in logs.
Network Indicators:
- Large or frequent ZIP file uploads to the Static Sites endpoint.
SIEM Query:
Search for file write events with path traversal patterns (e.g., '../') in application logs.