Kanboard up to 1.2.49 Plugin Installation Interface authorization

Summaryinfo

A vulnerability was found in Kanboard up to 1.2.49. It has been rated as critical. Affected is an unknown function of the component Plugin Installation Interface. Performing a manipulation results in authorization. This vulnerability is reported as CVE-2026-25924. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Kanboard up to 1.2.49. It has been classified as critical. This affects an unknown function of the component Plugin Installation Interface. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, a security control bypass vulnerability in Kanboard allows an authenticated administrator to achieve full Remote Code Execution (RCE). Although the application correctly hides the plugin installation interface when the PLUGIN_INSTALLER configuration is set to false, the underlying backend endpoint fails to verify this security setting. An attacker can exploit this oversight to force the server to download and install a malicious plugin, leading to arbitrary code execution. This vulnerability is fixed in 1.2.50.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-25924 since 02/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 298891 (Linux Distros Unpatched Vulnerability : CVE-2026-25924), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.2.50 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b9ada89b1a64034612fc4262b88c42458c0d6ee4 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.

The vulnerability is also documented in the vulnerability database at Tenable (298891). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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