Cross-site scripting in Zammad - CVE-2026-102345
Published: October 3, 2026
Vulnerability identifier: #VU153217
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-102345
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary script.
The vulnerability exists due to improper output encoding in ticket article rendering in the new Vue-based interface when rendering crafted ticket article content. A remote user can submit crafted ticket article content to execute arbitrary script.
User interaction is required to view the ticket.
Affected software
Zammad
How to mitigate CVE-2026-102345
Install security update from vendor's website.
Zammad - update to 7.1.2