Stored Cross-Site Scripting in Zammad Helpdesk System
CVE-2026-102345

5.1MEDIUM

Key Information:

Vendor

Zammad

Status
Zammad
Vendor
CVE Published:
4 November 2026

What is CVE-2026-102345?

The Zammad Helpdesk System prior to version 7.1.2 is vulnerable to stored cross-site scripting (XSS) through its new Vue-based ticket interface. This vulnerability allows authenticated users to insert markup into ticket articles. When another user views these tickets, the inserted markup is processed, potentially leading to unwanted JavaScript execution. The issue is mitigated by the default Content Security Policy; however, it is crucial to update to version 7.1.2 to ensure complete protection. The classic REST/CoffeeScript interface is not affected by this vulnerability.

Affected Version(s)

zammad < 7.1.2

References

https://github.com/zammad/zammad/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/zammad/zammad/commit/fe8fb9bd6c61f9136...
x_refsource_MISC

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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