Ever Gauzy v0.281.9 JWT Authentication Weakness via HMAC Secret

Advisories

severity: critical
date: December 19, 2025
Affecting: ever gauzy 0.281.9
CVE: CVE-2023-53951
CWE: CWE-347 Improper Verification of Cryptographic Signature
CVSS: 9.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-51354
Official Product Homepage
Credit: nu11secur1ty
Description: Ever Gauzy v0.281.9 contains a JWT authentication vulnerability that allows attackers to exploit weak HMAC secret key implementation. Attackers can leverage the exposed JWT token to authenticate and gain unauthorized access with administrative permissions.