CVE-2008-5967: Phpicalendar

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

admin/index.php in PHP iCalendar 2.3.4, 2.24, and earlier does not require administrative authentication for an addupdate action, which allows remote attackers to upload a calendar (aka .ics) file with arbitrary content to the calendars/ directory outside the web root.

Affected products

• Phpicalendar Phpicalendar: up to and including 2.3.4; version 0.7 only; version 0.8 only; version 0.9 only; version 0.9.5 only; version 1.0 only; …

Published 2009-01-26. Last modified 2026-06-16.