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.
Open redirect vulnerability in the Login Page (index.php) in ownCloud before 5.0.6 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the redirect_url parameter.
The login page (aka index.php) in ownCloud before 5.0.6 does not disable the autocomplete setting for the password parameter, which makes it easier for physically proximate attackers to guess the password.
ownCloud before 5.0.6 does not properly check permissions, which allows remote authenticated users to execute arbitrary API commands via unspecified vectors. NOTE: this can be leveraged using CSRF to allow remote attackers to execute arbitrary API commands.
Directory traversal vulnerability in apps/files_trashbin/index.php in ownCloud Server before 5.0.6 allows remote authenticated users to access arbitrary files via a .. (dot dot) in the dir parameter.
Incomplete blacklist vulnerability in ownCloud before 5.0.6 allows remote authenticated users to execute arbitrary PHP code by uploading a crafted file, then accessing it via a direct request to the file in /data.
Multiple cross-site scripting (XSS) vulnerabilities in ownCloud before 4.0.16 and 5.x before 5.0.7 allow remote authenticated users to inject arbitrary web script or HTML via vectors related to shared files.
Multiple cross-site scripting (XSS) vulnerabilities in js/viewer.js in ownCloud before 4.5.12 and 5.x before 5.0.7 allow remote attackers to inject arbitrary web script or HTML via vectors related to shared files.
Session fixation vulnerability in ownCloud before 6.0.2, when PHP is configured to accept session parameters through a GET request, allows remote attackers to hijack web sessions via unspecified vectors.
The default Flash Cross Domain policies in ownCloud before 5.0.15 and 6.x before 6.0.2 allows remote attackers to access user files via unspecified vectors.