CVE-2021-42085: Zammad

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Zammad before 4.1.1. There is stored XSS via a custom Avatar.

Affected products

• Zammad Zammad: before 4.1.1 (fixed in 4.1.1)

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