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Fuxa CVE-2025-69971

CRITICAL
Use of Hard-coded Credentials (CWE-798)
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Credential externalization
MITRE ATT&CK

2 techniques across 2 tactics: Persistence, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS 9.8, EPSS 4.8% — highest exploitation probability among FUXA vulnerabilities. Even if secureEnabled is turned on, the hard-coded JWT makes authentication meaningless.

Exploit ScenarioDerived

An attacker extracts the hard-coded JWT secret from FUXA's source code, forges an admin JWT token, and accesses the SCADA/HMI interface with full administrative privileges to control industrial processes.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
Patch available 4.8% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

FUXA v1.2.7 has hard-coded JWT credentials (EPSS 4.8%) that allow attackers to forge authentication tokens and bypass all access controls on the SCADA interface.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 9.8

Hard-coded JWT secret in FUXA SCADA enables authentication bypass — highest exploitation risk.

RemediationAI

Update FUXA. Generate a unique JWT secret per installation. Rotate all tokens.

Affected Packages

npm @frangoteam/fuxa fix: 1.3.0
npm fuxa-server no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

FUXA v1.2.7 uses a hard-coded JWT secret key in server/api/jwt-helper.js (CWE-798). Any attacker who discovers this key (easily extracted from the source code) can forge valid JWT tokens.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

FUXA v1.2.7 contains a hard-coded credential vulnerability in server/api/jwt-helper.js. The application uses a hard-coded secret key to sign and verify JWT Tokens. This allows remote attackers to forge valid admin tokens and bypass authentication to gain full administrative access.

Executive ViewAI

Why It Matters

FUXA v1.2.7 uses a hard-coded secret key to sign authentication tokens, allowing attackers to forge valid credentials and gain unauthorized access to the application without legitimate authentication. Any organization running this version faces immediate risk of account takeover, data exfiltration, and system compromise, particularly if the application is internet-facing or processes sensitive data.

Business Impact: Severe
Compensating Controls

Implement network segmentation to restrict access to FUXA instances; deploy Web Application Firewall (WAF) rules to monitor and block suspicious JWT token patterns; enforce multi-factor authentication (MFA) for all application users; enable detailed logging and alerting on authentication events; consider disabling JWT-based authentication in favor of alternative credential mechanisms if operationally feasible; restrict API access to trusted IP ranges only. Note: These controls reduce but do not eliminate risk—vendor patch or version upgrade is essential.

Threat Intelligence Overview

EPSS Score
4.8%
Top 11% exploitable
Threat Intel
1
1 sources
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 4.8%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity + public POC available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

74
Low Medium High Critical
KEV: 0
EPSS: +5
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:frangoteam:fuxa:1.2.7:*:*:*:*:*:*:*

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