index.php in ownCloud 4.0.7 does not properly validate the octoken cookie, which allows remote attackers to bypass authentication via a crafted octoken cookie value.

Incomplete blacklist vulnerability in ajax/upload.php in ownCloud before 5.0, when running on Windows, allows remote authenticated users to bypass intended access restrictions, upload files with arbitrary names, and execute arbitrary code via an Alternate Data Stream (ADS) syntax in the filename parameter, as demonstrated using .htaccess::$DATA to upload a PHP program.

Incomplete blacklist vulnerability in lib/filesystem.php in ownCloud before 4.0.9 and 4.5.x before 4.5.2 allows remote authenticated users to execute arbitrary PHP code by uploading a file with a special crafted name.

ownCloud 4.0.x before 4.0.10 and 4.5.x before 4.5.5 does not properly restrict access to settings.php, which allows remote attackers to edit app configurations of userwebdavauth and userldap by editing this file.

Multiple cross-site scripting (XSS) vulnerabilities in actionscript/Jplayer.as in the Flash SWF component (jplayer.swf) in jPlayer before 2.2.20, as used in ownCloud Server before 5.0.4 and other products, allow remote attackers to inject arbitrary web script or HTML via the (1) jQuery or (2) id parameters, as demonstrated using document.write in the jQuery parameter, a different vulnerability than CVE-2013-2022 and CVE-2013-2023.