CVE-2020-29160: Zammad

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Zammad Zammad: before 3.5.1 (fixed in 3.5.1)

Published 2020-12-28. Last modified 2026-06-17.