Medium severity6.1NVD Advisory· Published Apr 8, 2026· Updated Apr 17, 2026
CVE-2026-34718
CVE-2026-34718
Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is rendering this content, due to applied CSP rules no harm was done by e.g., clicking such a link. This vulnerability is fixed in 7.0.1 and 6.5.4.
Affected products
2Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/zammad/zammad/security/advisories/GHSA-c2cf-9fc7-jhf3nvdVendor Advisory
News mentions
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