CVE-2012-5336: ownCloud

Medium severity, CVSS 4.0. EPSS: 1% chance of exploitation in the next 30 days.

lib/base.php in ownCloud before 4.0.8 does not properly validate the user_id session variable, which allows remote authenticated users to read arbitrary files via vectors related to WebDAV.

Affected products

• ownCloud ownCloud: up to and including 4.0.7
• ownCloud ownCloud Server: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.0.5 only; …

Published 2014-06-04. Last modified 2026-06-16.