Multiple cross-site scripting (XSS) vulnerabilities in the formatQuery function in frontends/php/include/classes/class.curl.php in Zabbix before 1.8.3rc1 allow remote attackers to inject arbitrary web script or HTML via the (1) filterset, (2) showdetails, (3) filterrst, or (4) txtselect parameters to the triggers page (tr_status.php). NOTE: some of these details are obtained from third party information.