Multiple SQL injection vulnerabilities in the search action in Zainu 2.0 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) term and (2) start parameters to index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/23274
http://www.vupen.com/english/advisories/2005/2603
http://secunia.com/advisories/17766
http://pridels0.blogspot.com/2005/11/zainu-2x-sql-inj-vuln.html