Single Sign-on (SSO) between two WordPress sites | Login into Multiple WordPress Sites

Single Sign-on (SSO) between two WordPress sites | Login into Multiple WordPress Sites


To setup Single Sign-On between two wordpress websites (wp-wp single sign on), consider WordPress site 'A' as a server-side database for your users. And WordPress site 'B' serves as the client side, allowing users to log in using the credentials from site 'A.' Installing the OAuth Server plugin on server site (site A) and the OAuth Client plugin on client site (site B) will allow users to connect to your WordPress client site using their WordPress server site credentials (site B) using OAuth / OpenID Connect / JWT protocol. On the WordPress client site (site B) where you wish to execute SSO, install our OAuth Client plugin to perform wordpress single sign between multiple sites. WordPress client site responsibilities can be mapped based on WordPress client site attributes/groups. To know more about other features we provide in the WP OAuth Client plugin, you can click here and for OAuth Server Plugin you can click here. Also, this will allow you to Auto-Login into multiple WordPress sites using a single WordPress site credentials.

Pre-requisites : Download And Installation

1. Installation Steps for WordPress OAuth Server Single Sign-On (SSO) plugin

  • Log into your WordPress instance " A "as an admin.
  • Go to the WordPress Dashboard -> Plugins and click on Add New.
  • Search for a WordPress OAuth Server Single Sign-On (SSO) plugin and click on Install Now.
  • Once installed click on Activate.

2. Installation Steps for WordPress OAuth Single Sign-On (SSO) plugin

  • Log into your WordPress instance" B " as an admin.
  • Go to the WordPress Dashboard -> Plugins and click on Add New.
  • Search for a WordPress OAuth Single Sign-On (SSO) plugin and click on Install Now.
  • Once installed click on Activate.


Steps to Configure SSO across Multiple WordPress Sites

1. Setup Wordpress as OAuth Server


  • Go to miniOrange OAuth Server plugin on the left side menu and choose your OAuth client from the list, Here WordPress.
  • Single Sign-On (SSO) between two WordPress Sites - select wordpress
  • Enter Client name as you want. Copy Redirect / Callback URL from OAuth Client Single Sign-On (SSO) plugin and enter under Authorized Redirect URI field. Click on Save client button.
  • Single Sign-On (SSO) between two WordPress Sites - add redirect / callback url
  • Note down Client Id and Client Secret to configure in the OAuth Client Single Sign-On (SSO) plugin
  • Single Sign-On (SSO) between two WordPress Sites - get client-id client-secret

You have successfully configured WordPress as OAuth Server for achieving user authentication and SSO between multiple wordpress sites

2. Setup WordPress as OAuth Client


  • Go to Configure OAuth tab and click Add New Application to add a new client application into your website.
  • Single Sign-On (SSO) between two WordPress Sites - Add new application
  • Choose your Application from the list of OAuth / OpenID Connect Providers, Here WordPress.
  • Single Sign-On (SSO) between two WordPress Sites - Select Application
  • Copy the Callback URL to be used in OAuth Provider Configuration and click Next.
  • Single Sign-On (SSO) between two WordPress Sites - Callback URL
  • Please refer the below table for configuring the scope & endpoints for WordPress OAuth Server in the plugin .

  • Client ID : from the step 1 above
    Client Secret : from the step 1 above
    Scope: openid
    Authorize Endpoint: https://<your-site-url>/wp-json/moserver/authorize
    Access Token Endpoint: https://<your-site-url>/wp-json/moserver/token
    Get User Info Endpoint: https://<your-site-url>/wp-json/moserver/resource
  • Now, configure App Name, Authorization Endpoint, Token Endpoint, Userinfo Endpoint received from WordPress OAuth Server. Click Next.
  • Single Sign-On (SSO) between two WordPress Sites - configure appname
  • Configure the client credentials like Client ID & Client Secret as shown in the setup dialogue box and enter the scope value as openid. Click Next.
  • Single Sign-On (SSO) between two WordPress Sites - Client ID & Client Secret
  • Click on the Finish button.
  • Single Sign-On (SSO) between two WordPress Sites - Finish configuration

You've successfully established WordPress as an OAuth Client, allowing users to perform Single Sign-On (SSO) between multiple wordpress sites using a single set of login credentials with WP - WP Single Sign-On (SSO) login into your WordPress site.


3. User Attribute Mapping

  • User Attribute Mapping is mandatory for enabling users to successfully login into WordPress. We will be setting up user profile attributes for WordPress using below settings.

  • You will see different user attributes returned by your OAuth Provider in a test configuration table. If you don't see any user attributes, make the required settings in your OAuth Provider to return this information.
  • Single Sign-On (SSO) between two WordPress Sites - test configuration result
  • Once you see all the values in Test Configuration, go to Attribute / Role Mapping tab, select attributes from Username dropdown and click on Save.
  • Single Sign-On (SSO) between two WordPress Sites - attribute/role mapping

You have successfully configured WordPress as OAuth Client for achieving user authentication with Wordpress OAuth Server Single Sign-On (SSO) login into your WordPress Site.

4. Sign In Settings

  • The settings in Single Sign-On (SSO) Settings tab define the user experience for Single Sign-On (SSO). To add a WordPress login widget on your WordPress page, you need to follow the below steps.
    • Go to WordPress Left Panel > Appearances > Widgets.
    • Select miniOrange OAuth. Drag and drop to your favourite location and save.
    •  Single Sign-On (SSO) between two WordPress Sites - WordPress create-newclient login button setting
    • Go to WordPress Left Panel > Appearances > Widgets.
    • Select miniOrange OAuth. Drag and drop to your favourite location and save.
    • Single Sign-On (SSO) between two WordPress Sites - WordPress create-newclient login button setting
    • Open your WordPress page and you can see the WordPress SSO login button there. You can test the WordPress Single Sign-On (SSO) now.
    • Make sure the "Show on login page" option is enabled for your application. (Refer to the below image)
    • Single Sign-On (SSO) between two WordPress Sites - WordPress create-newclient login button setting
    • Now, go to your WordPress Login page. (Eg. https://< your-wordpress-domain >/wp-login.php)
    • You will see an WordPress SSO login button there. Once you click the login button, you will be able to test the WordPress Single Sign-On (SSO).
    • Single Sign-On (SSO) between two WordPress Sites - WordPress create-newclient login button setting

You have successfully configured Single Sign-On between two wordpress sites by configuring WordPress as OAuth Provider and WordPress as OAuth Client using our WP OAuth Single Sign-On (SSO). This solution ensures that you configure wp-wp Single Sign-On and are ready to increase user authentication authority by securing login to your WordPress site A using WordPress site 'B' as client side where you want to login users using site 'A' account credentials.


Additional Resources


Mail us on oauthsupport@xecurify.com for quick guidance(via email/meeting) on your requirement and our team will help you to select the best suitable solution/plan as per your requirement.

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