CVE-2026-58660

HighCVSS 8.1/10Last modified Oct 29, 2026

Description

Kanboard before 1.2.53, 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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-639

Affected software

VendorProductVersions
kanboardkanboard< 1.2.53

References

Timeline

Published
Jul 15, 2026
Last modified
Oct 29, 2026
NVD status
Deferred

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