As standard, the default user role in WordPress is Subscriber, and that is the most secure setting to use, however, sometimes having the default user role set as something else such as Editor or Contributor.
Once you know what role you want to set as default, or would like to check what your WordPress user default role is currently set to, keep reading.
First, you're going to need to log in to your WordPress admin area, and then click on "Settings" on the left-hand admin menu. This should take you to the site's general settings.
Around half way down the page, you should see New User Default Role.
As you can see from our screenshot, it is set to Subscriber. You can choose any of the available roles, and then click on the "Save Changes" button at the bottom of the page.
Note: Please use extreme caution when changing this setting. Giving a default role with too many permissions could cause you issues with your website, or even allow people to hijack it! Do not set the default role to Administrator!!