CVE Catalog

CVE-2026-79575

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

4th percentile - higher than 4% of all known CVEs

Summary

The JWT signing secret in yfexam-exam v2.0 is derived from the username and the current month instead of a random server-side key, making the secret key easily obtainable via a bruteforce attack.

Risk Assessment

An attacker can guess the JWT secret and forge tokens, potentially leading to unauthorized access to user accounts or privilege escalation.

Recommendation

Change the JWT secret generation mechanism to a random server-side key and update the application to a patched version.

Related vulnerabilities

Original NVD description (English source)

The JWT signing secret in yfexam-exam v2.0 is derived from the username and the current month instead of a random server-side key, making the secret key easily obtainable via a bruteforce attack.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS