CVE-2026-56731

high

Description

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1, a low-privilege authenticated user may inject arbitrary HTML markup, including JavaScript event handlers, into a ticket title via the standard ticket creation workflow. The title is persisted without sanitization. This issue is fixed in version 7.0.1.

References

https://github.com/zammad/zammad/security/advisories/GHSA-p9xp-gx8r-4397

https://github.com/zammad/zammad/commit/16a4a2e1be6642ec0c3ba3a76e358ad065f48f78

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-87216

Details

Source: Mitre, NVD

Published: 2026-09-25

Updated: 2026-09-28

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

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

CVSS v4

Base Score: 8.4

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00243