Directory traversal vulnerability in Piwik 0.6 through 0.6.3 allows remote attackers to include arbitrary local files and possibly have unspecified other impact via directory traversal sequences in a crafted data-renderer request.
https://exchange.xforce.ibmcloud.com/vulnerabilities/60808
http://www.vupen.com/english/advisories/2010/1971
http://www.securityfocus.com/bid/42031
http://secunia.com/advisories/40703
http://piwik.org/blog/2010/07/piwik-0-6-4-security-advisory/