admin/index.php in Maian Weblog 4.0 and earlier allows remote attackers to bypass authentication and gain administrative access by sending an arbitrary weblog_cookie cookie.
https://www.exploit-db.com/exploits/6064
https://exchange.xforce.ibmcloud.com/vulnerabilities/43751
http://www.securityfocus.com/bid/30209
http://www.maianscriptworld.co.uk/news.html
http://www.maianscriptworld.co.uk/free-php-scripts/maian-weblog/development/index.html