What is CVE-2020-26029?

CVE-2020-26029 is a medium-severity vulnerability in Zammad, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2020-12-28.

How severe is CVE-2020-26029?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Zammad

CVE-2020-26029

An issue was discovered in Zammad before 3.4.1. There are wrong authorization checks for impersonation requests via X-On-Behalf-Of. The authorization checks are performed for the actual user and not the one given in the X-On-Behalf-Of header.

Vulnerability class: Broken Access Control

EPSS: 0.008 (52.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Zammad
N/a — versions n/a

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-26029?: CVE-2020-26029 is a medium-severity vulnerability in Zammad, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2020-12-28.
How severe is CVE-2020-26029?: Medium severity. CVSS v3 base score is 6.5 out of 10.