Multiple cross-site request forgery (CSRF) vulnerabilities in ownCloud before 4.0.12 and 4.5.x before 4.5.7 allow remote attackers to hijack the authentication of users for requests that (1) change the timezone for the user via the lat and lng parameters to apps/calendar/ajax/settings/guesstimezone.php, (2) disable or enable the automatic timezone detection via the timezonedetection parameter to apps/calendar/ajax/settings/timezonedetection.php, (3) import user accounts via the admin_export parameter to apps/admin_migrate/settings.php, (4) overwrite user files via the operation parameter to apps/user_migrate/ajax/export.php, or (5) change the authentication server URL via unspecified vectors to apps/user_ldap/settings.php.

Cross-site request forgery (CSRF) vulnerability in apps/calendar/ajax/settings/settimezone in ownCloud before 4.0.12 allows remote attackers to hijack the authentication of users for requests that change the timezone via the timezone parameter.

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud before 4.0.15, 4.5.x before 4.5.11, and 5.0.x before 5.0.6 allow remote authenticated users to inject arbitrary web script or HTML via the url parameter to (1) apps/bookmarks/ajax/addBookmark.php or (2) apps/bookmarks/ajax/editBookmark.php.

Incomplete blacklist vulnerability in lib/migrate.php in ownCloud before 4.0.13 and 4.5.x before 4.5.8, when the user_migrate application is enabled, allows remote authenticated users to import arbitrary files to the user's account 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.

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud before 4.0.15, 4.5.x before 4.5.11, and 5.0.x before 5.0.6 allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Directory traversal vulnerability in lib/files/view.php in ownCloud before 4.0.15, 4.5.x 4.5.11, and 5.x before 5.0.6 allows remote authenticated users to access arbitrary files via unspecified vectors.

Multiple incomplete blacklist vulnerabilities in (1) import.php and (2) ajax/uploadimport.php in apps/contacts/ in ownCloud before 4.0.13 and 4.5.x before 4.5.8 allow remote authenticated users to execute arbitrary PHP code by uploading a .htaccess file.

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.

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud before 4.0.12 and 4.5.x before 4.5.7 allow remote authenticated administrators to inject arbitrary web script or HTML via the (1) site_name or (2) site_url parameter to apps/external/ajax/setsites.php.