Multiple SQL injection vulnerabilities in Gregarius 0.5.2 allow remote attackers to execute arbitrary SQL commands via the (1) folder parameter to feed.php or (2) rss_query parameter to search.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25059
http://www.vupen.com/english/advisories/2006/0819
http://www.securityfocus.com/bid/16939
http://www.securityfocus.com/archive/1/426656/100/0/threaded