Cross-site scripting (XSS) vulnerability in the search functionality in DotNetNuke 4.8 through 5.1.4 allows remote attackers to inject arbitrary web script or HTML via search terms that are not properly filtered before display in a custom results page.
https://exchange.xforce.ibmcloud.com/vulnerabilities/54453
http://www.securityfocus.com/bid/37139
http://www.dotnetnuke.com/News/SecurityPolicy/securitybulletinno31/tabid/1450/Default.aspx