Authentication bypass via predictable per-user JWT secrets
Published Sep 18, 2025 · Updated Sep 19, 2025
Authentication bypass in youth-is-as-pale-as-poetry e-learning 1.0 allows remote attackers to forge administrator JWTs. JwtUtils.encryptSecret derives each HMAC secret by applying MD5 twice to the username and zero-based current month, making an administrator signing key predictable. No credentials or user interaction are required; knowledge of an account name and current month permits a forged 24-hour token to enter that account's interface.
Summary
What happened
Authentication bypass in youth-is-as-pale-as-poetry e-learning 1.0 allows remote attackers to forge administrator JWTs. JwtUtils.encryptSecret derives each HMAC secret by applying MD5 twice to the username and zero-based current month, making an administrator signing key predictable. No credentials or user interaction are required; knowledge of an account name and current month permits a forged 24-hour token to enter that account's interface.
The record
- CVE
- CVE-2025-10671
- Published
- Sep 18, 2025
- Updated
- Sep 19, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-330, CWE-310, T1550.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 18, 2025CVE publishedPublication date reported by the CVE source.
- Sep 19, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Authentication Bypass vulnerability proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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