Cross-site scripting (XSS) vulnerability in includes/htmlArea/plugins/HtmlTidy/html-tidy-logic.php in Kayako eSupport 3.20.2 allows remote attackers to inject arbitrary web script or HTML via the jsMakeSrc parameter.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.  NOTE: this issue is probably in the HTMLArea HTMLTidy (HTML Tidy) plugin, not eSupport.