Unspecified "security leak" vulnerability in Contenido before 4.6.4, when register_globals is on and allow_url_fopen is true, has unspecified impact and attack vectors. NOTE: it is likely that this is a PHP remote file include vulnerability.
http://www.vupen.com/english/advisories/2005/2819
http://www.securityfocus.com/bid/15790
http://www.contenido.org/opensourcecms/en/index-b-21-1616.html
http://archives.neohapsis.com/archives/apps/freshmeat/2005-12/0008.html