🛡️ CVE-2026-21879
🟡 CVSS 4.7 — Medium ⚠️ Exploit Public CWE-601 NVD
4.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below are vulnerable to an Open Redirect attack that allows malicious actors to redirect authenticated users to attacker-controlled websites. By crafting URLs such as //evil.com, attackers can bypass the filter_var($url, FILTER_VALIDATE_URL) validation check. This vulnerability could be exploited to conduct phishing attacks, steal user credentials, or distribute malware. The issue is fixed in version 1.2.49.

Details

Severity MEDIUM
CVSS Score 4.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
CWE CWE-601
Public Exploit ⚠️ Yes
Source NVD
Published 2026-01-08
Updated 2026-06-02
Modified 2026-01-20

Affected Packages

Software From version Fixed in
kanboard — 1.2.49

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