WordPress is free and open source software for building websites, blogs or applications. It is written in PHP and MySQL. It is used as a Content Management System (CMS) and has many features, including an architecture for additional features, and a template system.
It was first released on May 27, 2003, by Matt Mullenweg as a variation b2 / cafelog. As of August 2020, the version 5.5 has been downloaded more than 21,2 million times.
Web developers applicationThey released WordPress 5.5.2 as one security update and maintenance on October 29, 2020.
This bug fixes 14 bugs, which are described in release notes. This update fixes a critical vulnerability that could allow a remote attacker to take over a page via an attack refusalof service (denial of service attack).
Therefore, you should update as soon as possible if your web application has not already been updated automatically.
On October 30, 2020, WordPress 5.5.3 was released as an update to bug fix.