SQL injection vulnerability in listings.asp in 20/20 DataShed (aka Real Estate Listing System) allows remote attackers to execute arbitrary SQL commands via the itemID parameter. NOTE: some of these details are obtained from third party information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30258
http://www.vupen.com/english/advisories/2006/4526
http://www.securityfocus.com/bid/21109
http://www.securityfocus.com/archive/1/451503/100/200/threaded