What’s Vulnerable › Vulnerabilities

CVE-2026-24885: Kanboard Affected by Cross-Site Request Forgery (CSRF) via Content-Type Misconfiguration in Project Role Assignment

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-10 · updated 2026-06-17
• Weakness: CWE-352

Description

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, a Cross-Site Request Forgery (CSRF) vulnerability exists in the ProjectPermissionController within the Kanboard application. The application fails to strictly enforce the application/json Content-Type for the changeUserRole action. Although the request body is JSON, the server accepts text/plain, allowing an attacker to craft a malicious form using the text/plain attribute. Which allows unauthorized modification of project user roles if an authenticated admin visits a malicious site This vulnerability is fixed in 1.2.50.

Affected products

• kanboard: before 1.2.50 — fixed in 1.2.50

How to fix

Upgrade to a fixed version: kanboard 1.2.50. Check the vendor advisory for mitigations.

References

• https://github.com/kanboard/kanboard/commit/2c56d92783d4a3094812c2f7cba50f80a372f95e
• https://github.com/kanboard/kanboard/releases/tag/v1.2.50
• https://github.com/kanboard/kanboard/security/advisories/GHSA-582j-h4w4-hwr5
• https://github.com/kanboard/kanboard/security/advisories/GHSA-582j-h4w4-hwr5

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