Cross-site scripting (XSS) vulnerability in the fusion_core_preprocess_page function in fusion_core/template.php in the Fusion module before 6.x-1.13 for Drupal allows remote attackers to inject arbitrary web script or HTML via the q parameter.
http://www.securityfocus.com/bid/52798
http://www.openwall.com/lists/oss-security/2012/04/07/1
http://secunia.com/advisories/48606
http://drupalcode.org/project/fusion.git/commit/f7cee3d