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.
{ "binaries": [ { "binary_name": "owncloud", "binary_version": "6.0.1+dfsg-1ubuntu1" } ], "availability": "No subscription required" }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-2043.json"