CVE-2021-35303

6.1 mediumEPSS 0.8%

Medium (6.1) in zammad zammad. EPSS 0.8% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) in Zammad 1.0.x up to 4.0.0 allows remote attackers to execute arbitrary web script or HTML via the User Avatar attribute.

Severity

6.1 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-06-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19