CVE-2026-58660 – Kanboard BoardAjaxController Missing Ownership Check via Drag-and-Drop

​CVE ID :CVE-2026-58660

Published : July 15, 2026, 6:16 p.m. | 47 minutes ago

Description :Kanboard through 1.2.52, fixed in commit 564cc30, BoardAjaxController save() method (used by the kanban board drag-and-drop endpoint) validates the caller’s role on the attacker-supplied project_id but never verifies that the supplied task_id actually belongs to that project. Because task identifiers are sequential integers shared across the entire instance, any authenticated user who is a member of at least one project can enumerate and move (corrupt/hide) tasks belonging to any other project on the same instance, including private projects they have no membership or role on.

Severity: 8.1 | HIGH

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