SQL injection vulnerability in search.php in webSPELL 4.01.00 and earlier allows remote attackers to inject arbitrary SQL commands via the title_op parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24708
http://www.webspell.org/index.php?site=news_comments&newsID=49&lang=en
http://www.vupen.com/english/advisories/2006/0606