CVE-2026-56732CWE-20CWE-352csrf

CVE-2026-56732

published September 25, 2026

CVSS
5.3
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
5.3 · NONE
CVSS v4.0
5.3 · 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
EPSS
0.00198 · 9.1th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-09-25T22:17Z
References (3)
https://github.com/zammad/zammad/commit/3f6e8a5fa34eb0ce40f63292cf744f5f2992c9d0 · [email protected]https://github.com/zammad/zammad/releases/tag/7.0.2 · [email protected]https://github.com/zammad/zammad/security/advisories/GHSA-6rmm-28j9-q99q · [email protected]
EPSS history
Timeline
  • 27 SEP 03:26Z
    EPSS moved — → 0%
    epss
  • 25 SEP 17:08Z
    Zammad: Malicious input in Ticket Body Enables Session Termination
    cvelistv5