Open source content management systems (CMS) like WordPress, Joomla! and Drupal have become some of the most popular platforms for creating websites. So much in fact, that over 25 percent of the entire internet is powered on WordPress.
Platforms like WordPress are free and have a huge community of users and developers, providing a vast ecosystem themes and plugins. Unfortunately, since they’re so popular, open source platforms are often a large target for hackers and since much of the platform is developed by volunteers, code vulnerabilities may exist.