CVE-2025-69981

9.8 CRITICAL

📋 TL;DR

FUXA v1.2.7 has an unauthenticated file upload vulnerability in the /api/upload endpoint that allows remote attackers to upload arbitrary files. This can lead to system compromise through database overwriting or malicious script execution. All systems running FUXA v1.2.7 with the vulnerable endpoint exposed are affected.

💻 Affected Systems

Products:
  • FUXA
Versions: v1.2.7
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default configuration as the /api/upload endpoint lacks authentication by design in this version.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise via remote code execution, administrative access takeover, and potential lateral movement within the network.

🟠

Likely Case

Unauthenticated attackers upload malicious files to gain administrative privileges or execute arbitrary commands on the server.

🟢

If Mitigated

Limited impact with proper authentication, file type validation, and access controls preventing unauthorized uploads.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires only HTTP POST requests to the vulnerable endpoint with malicious files.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Unknown

Restart Required: No

Instructions:

No official patch available. Monitor the FUXA GitHub repository for updates and apply when released.

🔧 Temporary Workarounds

Implement Authentication

all

Add authentication middleware to the /api/upload endpoint to require valid credentials.

Modify server/api/projects/index.js to add authentication checks before file upload processing

File Type Restriction

all

Implement server-side validation to only allow specific safe file extensions.

Add file extension validation in the upload handler to reject executable/script files

🧯 If You Can't Patch

  • Block external access to the /api/upload endpoint using network firewalls or web application firewalls.
  • Implement strict file upload policies and monitor for suspicious upload activities.

🔍 How to Verify

Check if Vulnerable:

Test if unauthenticated POST requests to /api/upload are accepted and can upload arbitrary files.

Check Version:

Check FUXA version in package.json or application interface

Verify Fix Applied:

Verify that authentication is required for /api/upload and file type validation is enforced.

📡 Detection & Monitoring

Log Indicators:

  • Unauthenticated POST requests to /api/upload
  • Uploads of suspicious file types (.php, .jsp, .sh, .exe)

Network Indicators:

  • HTTP POST requests to /api/upload without authentication headers

SIEM Query:

source="web_server" AND (uri="/api/upload" AND method="POST" AND NOT auth_token=*)

🔗 References

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