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CVE-2026-56732

Zammad: Malicious input in Ticket Body Enables Session Termination

MEDIUM
5.3
CVSS Score
Published: September 25, 2026 at 05:08 PM UTC
Updated: September 28, 2026 at 02:45 PM UTC
1 product affected across 1 vendorZammad

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zammad· Zammad
60%
v < 7.0.2
Affected range stops below 7.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM
Source: cverecord
https://github.com/zammad/zammad/security/advisories/GHSA-6rmm-28j9-q99q
x_refsource_MISC
Source: cverecord
https://github.com/zammad/zammad/commit/3f6e8a5fa34eb0ce40f63292cf744f5f2992c9d0
x_refsource_MISC
Source: cverecord
https://github.com/zammad/zammad/releases/tag/7.0.2

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-20CWE-352

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