CVE-2026-21879 - Kanboard vulnerable to Open Redirect via protocol-relative URLs

CVE ID : CVE-2026-21879 Published : Jan. 8, 2026, 2:15 a.m. | 22 minutes ago 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. Severity: 4.7 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

Source: Telegram CVE Monitor