CVE-2020-26029

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CVSS 3.1

6.5 medium

EPSS

<1%p54

Published

Dec 28, 2020 (Dec 28, 2020)

Modified

Jun 17, 2026

Description

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.

Vendors: zammad
Products: zammad
Weakness: CWE-863
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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