How broadly exploitable is this vulnerability?

The vulnerability is broadly exploitable in any accessible deployment where an attacker can interact with the application endpoints and obtain or infer the hard-coded JWT secret. Once the secret is known, token forgery can be performed remotely without further access.

Does an attacker need valid user credentials to exploit this?

No. With knowledge of the hard-coded JWT secret, an attacker does not need existing credentials. They can directly generate tokens that claim administrative privileges and present them to the server.

What is the safest general fix pattern?

Remove the hard-coded secret from the code, load JWT signing keys from secure configuration or a secret-management system, and ensure that each deployment uses a strong, unique key. Where possible, rotate keys and invalidate old tokens during the transition.

Severity:

CRITICAL RISK

(9.8)

Hard-Coded JWT Secret (CWE-798) in FUXA Authentication Helper

CVE-2025-69971

Published:

Feb 3, 2026

Status:

Modified

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Hard-Coded Credentials

CWE:

CWE-798

Impact:

Authentication Bypass and Account Compromise

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Hard-Coded Credentials

CWE:

CWE-798

Impact:

Authentication Bypass and Account Compromise

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Hard-Coded JWT Secret (CWE-798) in FUXA Authentication Helper

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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