Kanboard up to 1.2.49 Incomplete Fix CVE-2023-33968 duplicateProjects authorization

Summaryinfo

A vulnerability was found in Kanboard up to 1.2.49 and classified as problematic. The impacted element is the function TaskCreationController::duplicateProjects of the component Incomplete Fix CVE-2023-33968. Such manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2026-25531. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Kanboard up to 1.2.49 and classified as problematic. Affected by this issue is the function TaskCreationController::duplicateProjects of the component Incomplete Fix CVE-2023-33968. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-25531 since 02/02/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 1.2.50 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch df7b7a21ee071f36466d8b38e40d0b0b8b8d394d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Forum Software

Name

• Kanboard

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.2.11
• 1.2.12
• 1.2.13
• 1.2.14
• 1.2.15
• 1.2.16
• 1.2.17
• 1.2.18
• 1.2.19
• 1.2.20
• 1.2.21
• 1.2.22
• 1.2.23
• 1.2.24
• 1.2.25
• 1.2.26
• 1.2.27
• 1.2.28
• 1.2.29
• 1.2.30
• 1.2.31
• 1.2.32
• 1.2.33
• 1.2.34
• 1.2.35
• 1.2.36
• 1.2.37
• 1.2.38
• 1.2.39
• 1.2.40
• 1.2.41
• 1.2.42
• 1.2.43
• 1.2.44
• 1.2.45
• 1.2.46
• 1.2.47
• 1.2.48
• 1.2.49

License

• open-source

Website

• Product: https://github.com/kanboard/kanboard/

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