Multiple cross-site scripting (XSS) vulnerabilities in Php-Nuke 6.x through 7.3 allow remote attackers to inject arbitrary HTML or web script into the (1) optionbox parameter in the News module, (2) date parameter in the Statistics module, (3) year, month, and month_1 parameters in the Stories_Archive module, (4) mode, order, and thold parameters in the Surveys module, or (5) a SQL statement to index.php, as processed by mainfile.php.