Auth bypass in Fatcatapps Quiz Cat

CVE-2025-30877

Missing Authorization vulnerability in fatcatapps Quiz Cat quiz-cat allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Quiz Cat: from n/a through <= 3.0.8.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (36.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-30877: held from 0.004 to 0.005.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-30877?
CVE-2025-30877 is a low-severity vulnerability in Fatcatapps Quiz Cat, classified under Missing Authorization. CVSS score: 2.7/10. Published 2025-03-27.
How severe is CVE-2025-30877?
Low severity. CVSS v3 base score is 2.7 out of 10.