An issue was discovered in Zammad before 3.4.1. There is Stored XSS via a Tags element in a TIcket.
https://zammad.com/news/security-advisory-zaa-2020-21
Source: Mitre, NVD
Published: 2020-12-28
Updated: 2026-06-17
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00343