What is CVE-2023-25403?

CVE-2023-25403 is a high-severity vulnerability in Yf-Exam Project, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2023-03-03.

How severe is CVE-2023-25403?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Yf-Exam Project

CVE-2023-25403

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.007 (47.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Yf-exam_project Yf-exam — versions 1.8.0
N/a — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2023-25403?: CVE-2023-25403 is a high-severity vulnerability in Yf-Exam Project, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2023-03-03.
How severe is CVE-2023-25403?: High severity. CVSS v3 base score is 7.5 out of 10.