In Liferay Portal before 7.1 CE GA4, an XSS vulnerability exists in the SimpleCaptcha API when custom code passes unsanitized input into the "url" parameter of the JSP taglib call <liferay-ui:captcha url="<%= url %>" /> or <liferay-captcha:captcha url="<%= url %>" />. Liferay Portal out-of-the-box behavior with no customizations is not vulnerable.
Liferay 6.2.x and before has an FCKeditor configuration that allows an attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment via a browser/liferay/browser.html?Type= or html/js/editor/fckeditor/editor/filemanager/browser/liferay/browser.html URI. NOTE: the vendor disputes this issue because file upload is an expected feature, subject to Role Based Access Control checks where only authenticated users with proper permissions can upload files
Cross-site scripting (XSS) vulnerability in the /html/portal/flash.jsp page in Liferay Portal CE 7.0 GA4 and older allows remote attackers to inject arbitrary web script or HTML via a javascript: URI in the "movie" parameter.