Auth bypass in Zammad
CVE-2026-65828
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the legacy destroy_form action on AttachmentsController deletes UploadCache Store records based solely on a user-supplied form_id without verifying that the requesting user owns those records. An authenticated attacker who learns another user's pending-upload UUID can silently remove temporary file uploads before the victim submits their ticket or article. This issue is fixed in version 7.1.2.
Vulnerability class: Broken Access Control
Published · last modified .
EPSS exploit prediction
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Affected products
- Zammad — versions < 7.1.2