PT-2026-60249 · Git+1 · Kanboard

George Chen · CVE-2026-58660 · Published 2026-07-15 · Updated 2026-07-15

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Name of the Vulnerable Software and Affected Versions Kanboard versions prior to 1.2.53

Description The save() function in the BoardAjaxController (used by the kanban board drag-and-drop endpoint) validates the user role based on the project id but fails to verify if the task id belongs to that specific project. Since task identifiers are sequential integers shared across the instance, an authenticated user with membership in any project can enumerate and move tasks from any other project, including private ones, effectively corrupting or hiding them.

Recommendations Update Kanboard to version 1.2.53 or later.

Exploit

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-58660

Affected Products

Kanboard

References · 8

• 🔥 https://github.com/kanboard/kanboard/issues/5852 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58660.json · Exploit
• https://github.com/kanboard/kanboard/commit/564cc30e1e360959572e01e158734d9475c05903 · Patch
• https://osv.dev/vulnerability/CVE-2026-58660 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-58660 · Security Note
• https://github.com/kanboard/kanboard/pull/5853 · Note
• https://github.com/kanboard/kanboard · Note
• https://vulncheck.com/advisories/kanboard-boardajaxcontroller-missing-ownership-check-via-drag-and-drop · Note