CVE-2004-1508: Webcalendar

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

init.php in WebCalendar allows remote attackers to execute arbitrary local PHP scripts via the user_inc parameter.

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 2004-12-31. Last modified 2026-06-16.