WikkaWiki (Wikka Wiki) before 1.1.6.3 allows attackers in a shared virtual host server environment to upload and execute an arbitrary configuration file by modifying the WAKKA_CONFIG environment variable.Referenceshttp://osvdb.org/35825http://www.vupen.com/english/advisories/2007/1725http://wikkawiki.org/WikkaReleaseNoteshttp://wush.net/trac/wikka/ticket/98