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TI-2026-42225 Aliases CVE-2026-58660GHSA-f95x-r3pv-jh63

Kanboard BoardAjaxController Missing Ownership Check via Drag-and-Drop

Priority HIGH 65CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00504 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed kanboard (kanboard): 1.2.53

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
kanboardkanboardbefore 1.2.531.2.53Patch availableCNA
  • kanboard Vendorkanboard Affected before 1.2.53 Fixed in 1.2.53 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:*——kanboard
  • cpe:2.3:a:kanboard:kanboard:*:*:*:*:*:*:*:* Versions — — ·kanboard

Remediation

  • Fix · CNA kanboard (kanboard) Fixed in 1.2.53

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58660
  2. 2026-10-03 Alias added: GHSA-f95x-r3pv-jh63
  3. 2026-10-29 Fix available: kanboard/[email protected] · CNA

References

Exploit 1

Patch 2

  • TI-2026-17582 Kanboard is Vulnerable to Reverse Proxy Authentication Bypass CVSS 3.1CRITICAL 9.1
  • TI-2025-34713 Kanboard Authenticated Admin Remote Code Execution via Unsafe Deserialization of Events CVSS 3.1CRITICAL 9.1
  • TI-2024-34653 Remote code execution through language setting in kanboard CVSS 3.1CRITICAL 9.1
  • TI-2024-34652 Arbitrary File Read and Delete in kanboard CVSS 3.1CRITICAL 9.1
  • TI-2025-32655 Kanboard Password Reset Poisoning via Host Header Injection CVSS 3.1HIGH 8.8
  • TI-2026-20954 Kanboard is Missing Access Control on Plugin Installation leading to Administrative RCE CVSS 3.1HIGH 8.5
See all 50 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences