CVE-2021-42086: Zammad

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in Zammad before 4.1.1. An Agent account can modify account data, and gain admin access, via a crafted request.

Affected products

• Zammad Zammad: before 4.1.1 (fixed in 4.1.1)

Published 2021-10-07. Last modified 2026-06-17.