Auth bypass in Zammad

CVE-2023-50457

An issue was discovered in Zammad before 6.2.0. When listing tickets linked to a knowledge base answer, or knowledge base answers of a ticket, a user could see entries for which they lack permissions.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.3% 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-2023-50457: held from 0.004 to 0.004.

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

Affected products

  • Zammad — versions 6.1.0, 6.2.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-50457?
CVE-2023-50457 is a medium-severity vulnerability in Zammad, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2023-12-10.
How severe is CVE-2023-50457?
Medium severity. CVSS v3 base score is 4.3 out of 10.