CVE-2001-0477: Webcalendar

High severity, CVSS 7.5. EPSS: 4% chance of exploitation in the next 30 days.

Vulnerability in WebCalendar 0.9.26 allows remote command execution.

Affected products

• Webcalendar Webcalendar: version 0.9.8 only; version 0.9.11 only; version 0.9.15 only; version 0.9.16 only; version 0.9.19 only; version 0.9.20 only; …

Published 2001-06-27. Last modified 2026-06-16.