Directory traversal vulnerability in weblog.pl in PerlBlog 1.09b and earlier allows remote attackers to read certain files via the month parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24690
http://www.securityfocus.com/bid/16707
http://www.securityfocus.com/archive/1/426260/100/0/threaded
http://securityreason.com/securityalert/508