🛡️ CVE-2026-25924 — kanboard

🟠 CVSS 8.4 — High ⚠️ Exploit Public CWE-863 NVD

8.4

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-25924 is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

CVE-2026-25924 is recorded against 1 package.

kanboard (fixed in 1.2.50)

Timeline and source

Published on 11 February 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com

CVE-2026-25924 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity HIGH

CVSS Score 8.4

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

CWE CWE-863

Public Exploit ⚠️ Yes

Source NVD

Published 2026-02-11

Updated 2026-08-11

Modified 2026-06-17

Fix URL https://github.com/kanboard/kanboard/commit/b9ada89b1a64034612fc4262b88c42458c0d6ee4

Affected Packages

Software	From version	Fixed in
kanboard	—	1.2.50

References

Patch https://github.com/kanboard/kanboard/commit/b9ada89b1a64034612fc4262b88c42458c0d6ee4

Product, Release Notes https://github.com/kanboard/kanboard/releases/tag/v1.2.50

Exploit, Mitigation, Vendor Advisory https://github.com/kanboard/kanboard/security/advisories/GHSA-grch-p7vf-vc4f

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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Exploit Protection

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CVE-2026-25924 carries CVSS 8.4 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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