CVE-2021-42092: 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. Stored XSS may occur via an Article during addition of an attachment to a Ticket.

Affected products

• Zammad Zammad: before 4.1.1 (fixed in 4.1.1)

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