CVE-2023-53951CWE-347

Ever Gauzy v0.281.9 JWT Authentication Weakness via HMAC Secret

Critical · published December 19, 2025

CVSS v4.0
9.3
EPSS
0%
Percentile
28.5
In the wild
Unconfirmed
What it is

🔥 A weak HMAC secret key in Ever Gauzy v0.281.9 could allow attackers to waltz right into your admin dashboard with ease! ⚡ Think of it like a club with a bouncer who only checks IDs from people they know. If someone sneaks in with a counterfeit ID that passes the bouncer's casual glance, they could wreak havoc inside, just like attackers using a compromised JWT. An attacker could misuse this vulnerability to gain full administrative access, potentially altering data, deleting records, or even worse—compromising the entire system's integrity! The consequences could be absolutely devastating, especially if sensitive data is involved.

Put simply

Think of it like a club with a bouncer who only checks IDs from people they know. If someone sneaks in with a counterfeit ID that passes the bouncer's casual glance, they could wreak havoc inside, just like attackers using a compromised JWT. This vulnerability stems from a flawed implementation of HMAC secret keys in JWT authentication, allowing unauthorized access to administrative functions once an attacker obtains a valid JWT token.

What to do

An attacker could misuse this vulnerability to gain full administrative access, potentially altering data, deleting records, or even worse—compromising the entire system's integrity! The consequences could be absolutely devastating, especially if sensitive data is involved. Update to Ever Gauzy version 0.281.10 or higher immediately! Additionally, review your HMAC key generation process to ensure strong, unpredictable keys that can't be easily compromised. You've got this! Follow these steps, and you'll have your system secured in no time! 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
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
EPSS
0.00359 · 28.5th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2025-12-19T21:05Z
EPSS history
Timeline
  • 19 DEC 21:05Z
    Ever Gauzy v0.281.9 JWT Authentication Weakness via HMAC Secret
    cvelistv5