Unauthenticated admin access via hard-coded JWT secret
Published Jun 25, 2025 · Updated Jul 1, 2025
Authentication bypass in gooaclok819 sublinkX 1.0 through 1.8 allows remote attackers to access restricted routes with forged JWTs. middlewares/jwt.go signs and verifies HS256 tokens with the source-embedded string sublink, so attackers can mint an accepted administrator claim. No account is required; a network-accessible instance accepts the forged credential as an administrator.
Summary
What happened
Authentication bypass in gooaclok819 sublinkX 1.0 through 1.8 allows remote attackers to access restricted routes with forged JWTs. middlewares/jwt.go signs and verifies HS256 tokens with the source-embedded string sublink, so attackers can mint an accepted administrator claim. No account is required; a network-accessible instance accepts the forged credential as an administrator.
The record
- CVE
- CVE-2025-6669
- Published
- Jun 25, 2025
- Updated
- Jul 1, 2025
- Vendor
- gooaclok819
- Product
- sublinkX
- Classifications
- CWE-320, CWE-321, T1606
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 25, 2025CVE publishedPublication date reported by the CVE source.
- Jul 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0
- Affected versionversion=1.1
- Affected versionversion=1.2
- Affected versionversion=1.3
- Affected versionversion=1.4
- Affected versionversion=1.5
- Affected versionversion=1.6
- Affected versionversion=1.7
- Affected versionversion=1.8
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Hardcoded JWT Secret Key proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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