Full privileged user having power to delete,edit posts, adding users or even delete all the blog contents
Editor can view, edit, publish, and delete any posts/pages, moderate comments, manage categories, manage tags, manage links and upload files/images., by him and by others
An author can edit, publish and delete their posts, as well as upload files/images., cant manage posts or files by others
A contributor can edit their posts but cannot publish them. When a contributor creates a post, it will need to be submitted to an administrator for review. Once a contributor’s post is approved by an administrator and published, however, it may no longer be edited by the contributor. A contributor does not have the ability to upload files/images.