Multiple SQL injection vulnerabilities in yBlog 0.2.2.2 allow remote attackers to execute arbitrary SQL commands via (1) the q parameter to search.php, or the n parameter to (2) user.php or (3) uss.php.
https://www.exploit-db.com/exploits/5773
https://exchange.xforce.ibmcloud.com/vulnerabilities/42959
http://www.securityfocus.com/archive/1/493222/100/0/threaded