Auth bypass in Gunnarpayday Payday

CVE-2025-31876

Missing Authorization vulnerability in gunnarpayday Payday payday allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Payday: from n/a through <= 3.3.18.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% 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-2025-31876: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-31876?
CVE-2025-31876 is a medium-severity vulnerability in Gunnarpayday Payday, classified under Missing Authorization. CVSS score: 5.8/10. Published 2025-04-03.
How severe is CVE-2025-31876?
Medium severity. CVSS v3 base score is 5.8 out of 10.