The following are open-source wcms except
a) sitecore
Sitecore is not an open-source CMS among the available solutions. Joomla, WordPress, and Drupal are the most well-known and widely used open source content management system (CMS) systems. They’re all built on PHP and MySQL, and they give users and designers a lot of possibilities.
Here’s a some of the most significant distinctions between the two platforms. Drupal is a free open-source content management system. Sitecore, on the other hand, is a proprietary CMS with high licence costs.