CVE-2015-6670: ownCloud Server

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

ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.

Affected products

• ownCloud ownCloud Server: version 7.0.0 only; version 7.0.1 only; version 7.0.2 only; version 7.0.3 only; version 7.0.4 only; version 7.0.5 only; …

Published 2015-10-26. Last modified 2026-06-17.