What is CVE-2023-53951?

CVE-2023-53951 is a critical-severity vulnerability in Gauzy Ever, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2025-12-19.

How severe is CVE-2023-53951?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Gauzy Ever

CVE-2023-53951

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 administra…

EPSS: 0.003 (23.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Gauzy Ever — versions 0.281.9

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2023-53951?: CVE-2023-53951 is a critical-severity vulnerability in Gauzy Ever, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2025-12-19.
How severe is CVE-2023-53951?: Critical severity. CVSS v3 base score is 9.8 out of 10.