The ESS/ Network Controller and MicroServer Web Server components of Xerox WorkCentre and WorkCentre Pro 232, 238, 245, 255, 265 and 275 allow remote attackers to bypass authentication and execute arbitrary code via "WebUI command injection on TCP/IP hostname."
https://exchange.xforce.ibmcloud.com/vulnerabilities/29357
http://www.xerox.com/downloads/usa/en/c/cert_XRX06_005.pdf
http://www.vupen.com/english/advisories/2006/3921
http://www.securityfocus.com/bid/20334/info