Cross-site scripting (XSS) vulnerability in the getWindowOpenJavaScript function in org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow in Apache Wicket 1.5.x before 1.5.15, 6.x before 6.22.0, and 7.x before 7.2.0 might allow remote attackers to inject arbitrary web script or HTML via a ModalWindow title.