Auth bypass in Zammad

CVE-2020-29160

An issue was discovered in Zammad before 3.5.1. A REST API call allows an attacker to change Ticket Article data in a way that defeats auditing.

Vulnerability class: Broken Access Control

EPSS: 0.009 (56.0th 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

Zammad
N/a — versions n/a

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-29160?: CVE-2020-29160 is a high-severity vulnerability in Zammad, classified under Missing Authorization. CVSS score: 7.5/10. Published 2020-12-28.
How severe is CVE-2020-29160?: High severity. CVSS v3 base score is 7.5 out of 10.