post.php in x_atrix xGuestBook 1.02 allows remote attackers to obtain sensitive information via a request without the (1) user, (2) mail, (3) p, or (4) url parameter, which reveals the installation path in an error message.Referenceshttp://securityreason.com/securityalert/1304https://exchange.xforce.ibmcloud.com/vulnerabilities/27979http://www.securityfocus.com/archive/1/441170/100/0/threaded
