Web applications based on the LAMP stack of Linux, Apache, MySQL, and PHP are both important and a common target of attackers. Some web applications such as Snort Report and BASE are primarily defensive tools used to present the alerts from Snort sensors in an easy-to-use format. Other web applications like phpMyAdmin are primarily administrative; phpMyAdmin is used to remotely manage MySQL installations. Applications like Joomla and WordPress are content management systems that are used as the back end for many web sites; indeed more than a quarter of web sites use WordPress or Joomla. Zen Cart is a full-featured e-commerce site that includes a demonstration shop.