SSO between two WordPress Sites | Configure SSO for multiple WordPress sites


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Guide to setup Single Sign-On (SSO) login in multiple WordPress sites. To configure SSO login between two or multiple WP sites, we’ll first have to assume one WordPress site as the main source of user authentication (identity provider), and the rest of them as the service providers (SP) into which users login after successful authentication. In such a setting, Single Sign-On (SSO) between two WordPress (WP) sites can be setup with the help of our WordPress SAML SP Single Sign-On (SSO) and Login Using WordPress users (WP as SAML IdP) plugin. Our WordPress SAML SP Single Sign-On (SSO) plugin gives you the ability to use your WordPress (WP) site as SAML SP (Service Provider) and you can configure other WordPress (WP) site as an SAML IdP (Identity Provider) with Login Using WordPress users (WP as SAML IdP) plugin.

Let’s assume WP site 1 as our main source of authentication. So this WP site will be configured as the IDP in this case wherein the SAML IDP plugin will be installed. Subsequently, sites 2, 3, etc. will be configured as the SP in which users can seamlessly SSO login once they login into site 1, thus successfully setting up SSO between two or multiple WP sites.

NOTE:

You can configure secure Single Sign-On (SSO) between any number of WordPress sites using the miniOrange SSO solution. There are no restrictions on the number of WordPress sites involved in the SSO setup.

Pre-requisites : Download And Installation

  • To setup SSO between 2 WordPress sites, you will need to install two plugins.
  • Let’s consider you have 2 WP sites - Site A and Site B and you want to achieve SSO in two WP sites. Site A is where your users are stored and Site B is where you want users to login using site A credentials.
  • To achieve WordPress to WordPress SSO, on the Identity Provider site, WP site A, install the Login using WordPress Users Plugin .
  • add-wordpress sso download plugin
    Login using WordPress Users ( WP as SAML IDP )
    By miniOrange

    Single Sign-On (SSO) login with WordPress Users into any Service Provider like Tableau, Zoho, Zoom, Moodle, Canvas LMS, Absorb LMS, TalentLMS, etc.

     Tested with 6.0.2

  • On the Service Provider site, WP site B, install the WP SAML SSO Login Plugin.
  • WordPress Single Sign On SSO login with Azure, Azure B2C, Okta, ADFS, Keycloak, Salesforce, Ping, Onelogin, Gsuite, Shibboleth & many SAML IdPs [24/7 SUPPORT]

Step-by-step Video to Setup Single Sign-on between 2 WordPress

You can achieve different login flows for SSO into Multiple WP sites.

IdP Initiated SSO
  • A user already logged in to the Identity Provider (WP Site A) tries to access the Service Provider (WP Site B).
  • The user will not be prompted to enter credentials and the user would be automatically logged-into the Service Provider, WP site B using the credentials of the Identity Provider, WP site B.
SP Initiated SSO
  • A user tries to access the Service Provider (WP Site B).
  • If the user is not already logged into the Service Provider (WP Site B), they will be redirected to the Identity Provider (WP Site A) login page. After successful authentication, the user will be redirected to and logged into your Service Provider (WP Site B).
Single Sign On for Multiple WP Sites
  • Single Sign-On between multiple WordPress sites can be enabled as well so that users can log in into multiple WP sites using the credentials of the main WP site.
  • Let’s say Amazon is our Parent WordPress Site which has multiple child WordPress sites like Amazon Pantry, Amazon Prime, Amazon shopping, etc. In this scenario, SSO can be enabled to allow users registering and existing in Amazon to access the child sites using the same credentials.
  • Amazon Parent site would be configured as the Identity Provider using our WP SAML IDP Plugin and all the other Amazon sites would be configured as the Service Providers using our WP SAML SP Plugin.
  • If a user logs into the Identity Provider site (Amazon) then the SSO session can be shared with the other service providers i.e the user won’t need to enter credentials every time you access any child sites.

Note: If you have an external Identity Provider and multiple WP sites which need to share credentials, you can configure all your WordPress sites as the Service Providers using our plugin.

We also provide a solution for SSO between subsites of a Multisite network. Please Contact Us for more information.

Steps to configure SSO between two WordPress (WP) sites:

1. Setup 1st Wordpress Site as IdP (Identity Provider) for WordPress to WordPress SSO

Follow the steps below to configure 1st Wordpress Site as the IdP (Identity Provider)

SSO for multiple WordPress (WP) sites - miniorange img Configure 1st Wordpress Site as the IdP (Identity Provider)
  • Navigate to the 2nd WordPress site.
  • Install and activate the SAML SP Single Sign-On (SSO) login plugin on your WordPress site which is
    acting as Service Provider.
  • In the miniOrange SAML SP SSO plugin, navigate to Service Provider Metadata tab. Here, you can find the SP metadata such as SP Entity ID and ACS (AssertionConsumerService) URL which are required to configure the Identity Provider.
  • SSO between 2 WordPress (WP) sites - WP 2 sites SSO Login

  • Navigate to the WordPress site.
  • Install and activate the SAML & WSFED IDP ( SSO using WordPress Users ) plugin on your WordPress site which is acting as Identity Provider.
  • Go to the WordPress IDP plugin, navigate to the Service Provider tab.
  • Enter the values corresponding to the information from the Service Provider. Refer to the table below.
  • Service Provider Name Name of your Service Provider.
    SP Entity ID or Issuer Copy and paste the SP-EntityID from the Service Provider
    ACS URL Copy and paste the ACS URL from the Service Provider.
    NameID Format urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
    Assertion Signed Checked
    SSO between two WordPress (WP) sites - Configure setting
  • Click on the Save button to save your configurations.
  • Go to the IDP Metadata tab. Here you can find information for configuring the Service Provider.
  • You can also download the metadata XML file, by clicking on the download link.
  • Login into two WordPress (WP) sites - download metadata
  • You have successfully configured 1st WordPress site as IdP.

2. Configuring WordPress as SP (Service Provider)


In the WordPress SAML SSO plugin, go to the Service Provider Setup tab of the plugin. There are two ways to configure the WordPress SSO plugin:

A. By uploading IDP metadata:

  • Click on Upload IDP metadata button.
  • Enter the Identity Provider Name
  • You can either upload a metadata file and click on Upload button or use a metadata URL and click on Fetch Metadata.
  • WordPress SAML Single Sign-On (SSO) Login-upload metadata

B.Manual Configuration:

  • Provide the required settings (i.e. Identity Provider Name, IdP Entity ID or Issuer, SAML Login URL, X.509 Certificate) as provided by your Identity Provider and click on the Save button.

Step 3: Attribute Mapping

  • In the free plugin, only NameID is supported for Email and Username attributes of the WordPress user.
  • When a user performs SSO, the NameID value sent by the IDP will get mapped to the email and username of the WordPress user.
  • WordPress SAML Single Sign-On (SSO) Login-attribute mapping

Step 4: Role Mapping

  • In the free plugin, you can choose a Default Role which will be assigned to all the non-admin users when they perform SSO.
  • Go to Attribute/Role mapping tab and navigate to Role Mapping section.
  • Select the Default Role and click on the Update button.
  • wWordPress SAML Single Sign-On (SSO) Login-role mapping

Step 5: SSO settings

  • In the free plugin you can add a Single Sign-On button by enabling Add a Single Sign-On button on the WordPress Login Page toggle in Option 1.
  • WordPress SAML Single Sign-On (SSO) Login-SSO button
  • If your WordPress theme supports login widget, you can add a login widget to enable SP-Initiated SSO on your site.
  • Navigate to Redirection and SSO links tab and follow the given steps given under Option 2: Use a Widget to add a login widget on your site.
  • WordPress SAML Single Sign-On (SSO) Login-sso setting

In the WordPress SAML SSO plugin, go to the Service Provider Setup tab of the plugin. There are two ways to configure the WordPress SSO plugin:

A. By uploading IDP metadata:

  • Click on Upload IDP metadata button.
  • Enter the Identity Provider Name
  • You can either upload a metadata file and click on Upload button or use a metadata URL and click on Fetch Metadata.

B.Manual Configuration:

  • Provide the required settings (i.e. Identity Provider Name, IdP Entity ID or Issuer, SAML Login URL, X.509 Certificate) as provided by your Identity Provider and click on the Save button.

Step 3: Attribute Mapping

  • Attribute Mapping feature allows you to map the user attributes sent by the IDP during SSO to the user attributes at WordPress.
  • In WordPress SAML plugin, go to Attribute/Role Mapping tab and fill up the following fields in Attribute Mapping section.
  • WordPress SAML Single Sign-On (SSO) Login-attribute mapping

    NOTE: If you click on Test Configuration button in Service Provider Setup tab and authenticate with your IDP, you can see a list of attributes sent by the IDP in the Attribute/Role mapping tab. This information can be used to provide the above mapping.

Step 4: Role Mapping

    In the standard plugin, you can choose a default role which will be assigned to all the non-admin users when they perform SSO.

  • Go to Attribute/Role mapping tab and navigate to Role Mapping section.
  • Select the Default Role and click on the Save button.
  • WordPress SAML Single Sign-On (SSO) Login-role mapping

Step 5: SSO settings

    In the Standard plugin you can enable SP-initiated SSO using the following options.

  • Auto-Redirection from site: If this option is enabled, any unauthenticated user trying to access your site will get redirected to the IDP login page and after successful authentication, they will be redirected back to the same page on your site which they were trying to access.
  • Steps:

    • Go to Redirection and SSO Links tab of the plugin and navigate to Option 1: Auto - Redirection from site.
    • Enable Redirect to IdP if user not logged in [PROTECT COMPLETE SITE]option.
    • WordPress SAML Single Sign-On (SSO) Login-optin 1

  • Auto-Redirection from WordPress Login: If this option is enabled, any unauthenticated user trying to access the default WordPress login page will get redirected to the IDP login page for authentication. After successful authentication, they will be redirected back to the WordPress site.
  • Steps:

    • Go to Redirection and SSO Links tab of the plugin and navigate to Option 2: Auto- Redirection from WordPress Login.
    • Enable Redirect to IdP from WordPress Login Page option.
    • WordPress SAML Single Sign-On (SSO) Login-optin 2

      NOTE: Please enable the Backdoor login and note down the backdoor URL. This will allow you to access the WordPress login page in case you get locked out of the IDP.



  • SSO Links: You can add SSO links anywhere on your site using the Shortcode and Widget provided in Redirection and SSO Links tab > Option 3: SSO Links section of the plugin
  • WordPress SAML Single Sign-On (SSO) Login-optin 3

In the WordPress SAML SSO plugin, go to the Service Provider Setup tab of the plugin. There are two ways to configure the WordPress SSO plugin:

A. By uploading IDP metadata:

  • Click on Upload IDP metadata button.
  • Enter the Identity Provider Name
  • You can either upload a metadata file and click on Upload button or use a metadata URL and click on Fetch Metadata.
  • In the Premium plugin, you can enable auto-sync for the metadata URL which will auto-update the plugin configuration as per the IDP metadata after a set interval of time
  • WordPress SAML Single Sign-On (SSO) Login-enableauto scan

B.Manual Configuration:

  • Provide the required settings (i.e. Identity Provider Name, IdP Entity ID or Issuer, SAML Login URL, X.509 Certificate) as provided by your Identity Provider and click on the Save button.
  • In the Premium Plugin, you can provide the SAML Logout URL to achieve Single Logout on your WordPress site.

Step 3: Attribute Mapping

  • Attribute Mapping feature allows you to map the user attributes sent by the IDP during SSO to the user attributes at WordPress.
  • In WordPress SAML plugin, go to Attribute/Role Mapping tab and fill up the following fields in Attribute Mapping section.
  • WordPress SAML Single Sign-On (SSO) Login-attribute mapping
  • Custom Attribute Mapping: This feature allows you to map any attribute sent by the IDP to the usermeta table of WordPress.
  • WordPress SAML Single Sign-On (SSO) Login-attribute mapping

Step 4: Role Mapping

    This feature allows you to assign and manage roles of the users when they perform SSO. Along with the default WordPress roles, this is compatible with any custom roles as well.

  • From the Attribute Mapping section of the plugin, provide a mapping for the field named Group/Role. This attribute will contain the role related information sent by the IDP and will be used for Role Mapping.
  • Navigate to role mapping section and provide the mappings for the highlighted roles.
  • WordPress SAML Single Sign-On (SSO) Login-role mapping
  • For example, If you want a user whose Group/Role attribute value is wp-editor to be assigned as an Editor in WordPress, just provide the mapping as wp-editor in the Editor field of Role Mapping section.

Step 5: SSO Settings

    In the Premium plugin you can enable SP-initiated SSO using the following options.

  • Auto-Redirection from site: If this option is enabled, any unauthenticated user trying to access your site will get redirected to the IDP login page and after successful authentication they will be redirected back to the same page on your site which they were trying to access.
  • Steps:

    • Go to Redirection and SSO Links tab of the plugin and navigate to Option 1 : Auto-Redirection from site.
    • Enable Redirect to IdP if user not logged in [PROTECT COMPLETE SITE] option.
    • WordPress SAML Single Sign-On (SSO) Login-optin 1

  • Auto-Redirection from WordPress Login: If this option is enabled, any unauthenticated user trying to access the default WordPress login page will get redirected to the IDP login page for authentication. After successful authentication, they will be redirected back to the WordPress site.
  • Steps:

    • Go to Redirection and SSO Links tab of the plugin and navigate to Option 2: Auto- Redirection from WordPress Login.
    • Enable Redirect to IdP from WordPress Login Page option.
    • WordPress SAML Single Sign-On (SSO) Login-optin 2

      NOTE: Please enable the Backdoor login and note down the backdoor URL. This will allow you to access the WordPress login page in case you get locked out of the IDP login.

  • Login Button: You can add a customized login button anywhere on your site or WordPress login page by navigating to Option 3: Login Button section of Redirection and SSO Links tab.
  • WordPress SAML Single Sign-On (SSO) Login-optin 3
  • SSO Links: You can add SSO links anywhere on your site using the Shortcode and Widget provided in Option 4: SSO Links section of Redirection and SSO Links tab.
  • WordPress SAML Single Sign-On (SSO) Login-optin 4

In this Guide, we configured SAML 2.0 Single Sign-On (SSO) between two WordPress (WP) sites, choosing one WordPress website as IdP and another WordPress website as SP enabling SSO in Multiple WordPress (WP) sites / SSO between Two WordPress Sites using miniOrange plugins - SAML Single Sign On – SSO Login And Login Using WordPress users (WP as SAML IdP). SSO in Multiple WordPress (WP) sites / SSO between Two WordPress Sites solutions ensures that you are ready to roll out secure access to your WordPress(WP) sites using single login credentials.


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