WordPress H5P CSS Editor plugin cross-site scripting vulnerability

WordPress is the Wordpress Foundation’s set of blogging platform developed using the PHP language. The platform supports setting up personal blogging sites on servers with PHP and MySQL. H5P CSS Editor plugin is a WordPress open source application plugin. WordPress H5P CSS Editor plugin has a cross-site scripting vulnerability that stems from a lack of data validation filtering of user-supplied data and output. No detailed vulnerability details are available.