Cross-site scripting (XSS) vulnerability in the addItem method in the Menu widget in YUI before 2.9.0 allows remote attackers to inject arbitrary web script or HTML via a field that is added to a menu, related to documentation that specifies this field as a text field rather than an HTML field, a similar issue to CVE-2010-4569 and CVE-2010-4570.
https://exchange.xforce.ibmcloud.com/vulnerabilities/65180
http://yuilibrary.com/projects/yui2/ticket/2529231