CVE-2026-56732

Zammad: Malicious input in Ticket Body Enables Session Termination

State: Published
Severity: 5.3 Medium
Published: Sep 25, 2026
Updated: Sep 25, 2026
Reserved: Jun 22, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	GitHub_M

Weaknesses

CWE-20 Improper Input Validation
CWE-352 Cross-Site Request Forgery (CSRF)

Affected Products

Product	Versions
zammadzammad	< 7.0.2Affected

References

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