Multiple cross-site scripting (XSS) vulnerabilities in Luke Hutteman SharpReader allow remote attackers to inject arbitrary web script or HTML via a web feed, as demonstrated by certain test cases of the Robert Auger and Caleb Sima RSS and Atom feed reader test suite.
https://exchange.xforce.ibmcloud.com/vulnerabilities/29073
http://www.vupen.com/english/advisories/2006/3712