CVE-2025-69970 – FUXA v1.2.7 has an insecure default configurati... (How to Fix)

📋 TL;DR

FUXA v1.2.7 has an insecure default configuration where authentication is disabled by default due to a commented-out 'secureEnabled' flag. This allows unauthenticated attackers to access sensitive API endpoints, modify projects, and potentially control industrial equipment. All users running FUXA v1.2.7 with default settings are affected.

💻 Affected Systems

Products:

FUXA

Versions: v1.2.7 (likely earlier versions too, but confirmed for v1.2.7)

Operating Systems: All platforms running FUXA

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects installations using default settings. Custom configurations with authentication enabled are not vulnerable.

⚠️ Risk & Real-World Impact

🔴

Worst Case

Unauthenticated attackers gain full control over industrial equipment, causing physical damage, production disruption, or safety incidents.

🟠

Likely Case

Unauthenticated attackers access and modify projects, steal sensitive industrial data, or disrupt operations.

🟢

If Mitigated

Limited impact if proper network segmentation and authentication are already implemented.

🌐 Internet-Facing: HIGH - Internet-facing instances are immediately vulnerable to unauthenticated attacks.

🏢 Internal Only: HIGH - Even internal instances are vulnerable to insider threats or compromised internal systems.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Exploitation requires no authentication and minimal technical skill - attackers simply access API endpoints.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None known

Restart Required: Yes

Instructions:

1. Edit server/settings.default.js
2. Uncomment the 'secureEnabled' line
3. Set secureEnabled: true
4. Configure authentication settings
5. Restart FUXA service

🔧 Temporary Workarounds

Enable Authentication Manually

linux

Manually edit configuration to enable authentication

sed -i "s/\/\/ secureEnabled: false/secureEnabled: true/g" server/settings.default.js

Network Segmentation

all

Isolate FUXA instances from untrusted networks

🧯 If You Can't Patch

Immediately isolate FUXA instances from all networks except absolutely necessary industrial control systems
Implement strict firewall rules allowing only trusted IP addresses to access FUXA services

🔍 How to Verify

Check if Vulnerable:

Check server/settings.default.js for commented 'secureEnabled: false' line

Check Version:

Check package.json or documentation for FUXA version

Verify Fix Applied:

Verify 'secureEnabled: true' is uncommented in settings.default.js and authentication is required for API access

📡 Detection & Monitoring

Log Indicators:

Unauthenticated API access attempts
Authentication disabled warnings

Network Indicators:

Unencrypted API traffic to FUXA endpoints without authentication headers

SIEM Query:

source="fuxa.log" AND ("authentication disabled" OR "unauthenticated access")

📊 Metadata

CVE ID: CVE-2025-69970

CVSS v3 Score: 9.3 (CRITICAL)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CWE: CWE-79

Published: February 3, 2026

Last Updated: February 5, 2026

🤖 AI-assisted analysis, reviewed for accuracy

🔗 References

https://github.com/frangoteam/FUXA/blob/master/server/settings.default.js

📤 Share & Export

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🔗 Related Vulnerabilities

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