---
id: CVE-2026-56732
title: Zammad is a web based open source helpdesk/customer support system
summary: >-
  Zammad is a web based open source helpdesk/customer support system. Prior to
  7.0.2, vulnerability in Zammad's HTML sanitization allows injection of
  specific HTML elements into ticket bodies. When another user views the crafted
  ticket, th…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-20
  - CWE-352
vendor: zammad
product: zammad
affected:
  - zammad < 7.0.2
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:17:27.370'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56732'
references:
  - url: >-
      https://github.com/zammad/zammad/commit/3f6e8a5fa34eb0ce40f63292cf744f5f2992c9d0
    label: security-advisories@github.com
  - url: 'https://github.com/zammad/zammad/releases/tag/7.0.2'
    label: security-advisories@github.com
  - url: 'https://github.com/zammad/zammad/security/advisories/GHSA-6rmm-28j9-q99q'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-25T17:40:25.769965Z'
cvssSource: cna
ingestedAt: '2026-09-25T18:14:20.404Z'
---

## Overview

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, vulnerability in Zammad's HTML sanitization allows injection of specific HTML elements into ticket bodies. When another user views the crafted ticket, the injected element can trigger a logout request, terminating the viewer's session. This vulnerability is fixed in 7.0.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.