Multiple cross-site scripting (XSS) vulnerabilities in Leif M. Wright's Blog 3.5 allow remote attackers to inject arbitrary web script or HTML via the (1) Referer and (2) User-Agent HTTP headers, which are stored in a log file and not sanitized when the administrator views the "Log" page, possibly using the ViewCommentsLog function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24758
http://www.securityfocus.com/bid/16715
http://www.evuln.com/vulns/82/summary.html