Cross-site scripting (XSS) vulnerability in FacileForms before 1.4.7 for Mambo and Joomla!, when either register_globals or RG_EMULATION is enabled, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
http://www.vupen.com/english/advisories/2006/3817
http://www.securityfocus.com/bid/20254