PHP remote file inclusion vulnerability in external/rssfeeds.php in BSQ Sitestats (component for Joomla) 1.8.0, and possibly other versions before 2.2.1, allows remote attackers to execute arbitrary PHP code via the baseDir parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/29269
http://www.securityfocus.com/bid/20267
http://www.securityfocus.com/archive/1/447356/100/0/threaded
http://securityreason.com/securityalert/2360
http://secunia.com/secunia_research/2006-63/advisory/
http://developer.joomla.org/sf/sfmain/do/viewProject/projects.bsq_sitestats