CVE-2023-33968: Missing Access Control allows User to move and duplicate tasks in Kanboard

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-06-05 · updated 2026-06-17
Weakness: CWE-862

Description

Kanboard is open source project management software that focuses on the Kanban methodology. Versions prior to 1.2.30 are subject to a missing access control vulnerability that allows a user with low privileges to create or transfer tasks to any project within the software, even if they have not been invited or the project is personal. The vulnerable features are `Duplicate to project` and `Move to project`, which both utilize the `checkDestinationProjectValues()` function to check his values. This issue has been addressed in version 1.2.30. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

kanboard: before 1.2.30 — fixed in 1.2.30

How to fix

Upgrade to a fixed version: kanboard 1.2.30. Check the vendor advisory for mitigations.

References

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