CVE-2013-2043: ownCloud

Medium severity, CVSS 4.0. EPSS: 1.4% chance of exploitation in the next 30 days.

apps/calendar/ajax/events.php in ownCloud before 4.5.11 and 5.x before 5.0.6 does not properly check the ownership of a calendar, which allows remote authenticated users to download arbitrary calendars via the calendar_id parameter.

Affected products

• ownCloud ownCloud: up to and including 4.5.10
• ownCloud ownCloud Server: version 4.5.0 only; version 4.5.1 only; version 4.5.2 only; version 4.5.3 only; version 4.5.4 only; version 4.5.5 only; …

Published 2014-03-14. Last modified 2026-06-16.