CVE-2026-58660

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kanboard/kanboard/commit/564cc30e1e360959572e01e158734d9475c05903
https://github.com/kanboard/kanboard/issues/5852
https://github.com/kanboard/kanboard/pull/5853
https://www.vulncheck.com/advisories/kanboard-boardajaxcontroller-missing-ownership-check-via-drag-and-drop

Configurations

No configuration.

History

15 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 18:16

Updated : 2026-07-15 21:02

NVD link : CVE-2026-58660

Mitre link : CVE-2026-58660

CVE.ORG link : CVE-2026-58660

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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