VULNERABILITY INTELLIGENCE

CVE-2023-25403

CVSS score7.5 HIGH

EPSS probability0.65%

CISA KEVNot currently listed

Published2023-03-03

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

CleverStupidDog yf-exam v 1.8.0 is vulnerable to Authentication Bypass. The program uses a fixed JWT key, and the stored key uses username format characters. Any user who logged in within 24 hours. A token can be forged with his username to bypass authentication.

Weakness classification

nvd@nist.gov: CWE-639
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-639

Primary references

cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory