WalRack 1.x before 1.1.9 and 2.x before 2.0.7 does not properly restrict file uploads, which allows remote attackers to execute arbitrary PHP code via vectors involving a double extension, as demonstrated by a .php.zzz file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/67641
http://www.securityfocus.com/bid/48001
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000032
http://jvn.jp/en/jp/JVN46984044/index.html
http://jvn.jp/en/jp/JVN46984044/54827/index.html