Cross-site scripting (XSS) vulnerability in refresh_rate.htm in the web interface on the HP Deskjet 6840 printer with firmware XF1M131A allows remote attackers to inject arbitrary web script or HTML via the POST request body.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49850
http://www.securityfocus.com/bid/34480
http://www.securityfocus.com/archive/1/502620/100/0/threaded