Contributors can create and save drafts of posts, but they can’t publish them on their own. A user with a more capable user role, like Editor. Editor is one of the default user roles in WordPress, and like the name implies, its capabilities are geared for users with editorial oversight.
or Administrator, must publish the posts. They can only view and edit content that they are authors of, meaning that when they’re logged in, they will only be able to see their own posts in the Posts admin page.