Multiple cross-site scripting (XSS) vulnerabilities in server/offline.php in the ActiveHelper LiveHelp Live Chat plugin 3.1.0 and earlier for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) MESSAGE, (2) EMAIL, or (3) NAME parameter.
Multiple cross-site scripting (XSS) vulnerabilities in the ActiveHelper LiveHelp (com_activehelper_livehelp) component 2.0.3 for Joomla! allow remote attackers to inject arbitrary web script or HTML via (1) the DOMAINID parameter to server/cookies.php or (2) the SERVER parameter to server/index.php.