CVE-2026-21879
Severity CVSS v4.0:
Pending analysis
Type:
CWE-601
URL Redirection to Untrusted Site ('Open Redirect')
Publication date:
08/01/2026
Last modified:
08/01/2026
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.
Impact
Base Score 3.x
4.70
Severity 3.x
MEDIUM