Multiple cross-site scripting (XSS) vulnerabilities in javascript/editor/editor/filemanager/browser/mcpuk/connectors/php/connector.php in GraFX miniCWB 2.1.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) errcontext, (2) _GET, (3) _POST, (4) _SESSION, (5) _SERVER, and (6) fckphp_config[Debug_SERVER] parameters.