Multiple SQL injection vulnerabilities in sign.php in tinyguestbook allow remote attackers to execute arbitrary SQL commands via the (1) name and (2) msg parameters. NOTE: some of these details are obtained from third party information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/72109
http://www.securityfocus.com/bid/51259
http://secunia.com/advisories/47419
http://archives.neohapsis.com/archives/bugtraq/2012-01/0015.html