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.org/changelog/
owncloud.org/security/advisories/oc-sa-2012-005/
secunia.com/advisories/51357
www.openwall.com/lists/oss-security/2012/11/30/3
github.com/owncloud/core/commit/3cd416b667
github.com/owncloud/core/commit/4b86c43
github.com/owncloud/core/commit/6540c0fc63
github.com/owncloud/core/commit/f599267