Daniel Bachhuber

Chris Reynolds

John Spellman

Pantheon Systems

Josh Koenig

Anais Pantheor

SAML authentication for WordPress, using the bundled OneLogin SAML library or optionally installed <a href="https://simplesamlphp.org/" rel="nofollow ugc">SimpleSAMLphp</a>. OneLogin provides a SAML authentication bridge; SimpleSAMLphp provides SAML plus a variety of other authentication mechanisms. This plugin acts as a bridge between WordPress and the authentication library.
If your organization uses Google Apps, <a href="https://pantheon.io/docs/wordpress-google-sso/" rel="nofollow ugc">integrating Google Apps with WP SAML Auth</a> takes just a few steps.
The standard user flow looks like this:
<ul>
<li>User can log in via SAML using a button added to the standard WordPress login view.</li>
<li>When the button is clicked, the user is handed off to the authentication library. With OneLogin, the user is redirected to the SAML identity provider. With SimpleSAMLphp, the user is redirected to the SimpleSAMLphp install.</li>
<li>Once the user is authenticated with the identity provider, they’re redirected back to WordPress and signed in to their account. A new WordPress user will be created if none exists (although this behavior can be disabled).</li>
<li>When the user logs out of WordPress, they are also logged out of the identity provider.</li>
</ul>
A set of configuration options allow you to change the plugin’s default behavior. For instance, <code>permit_wp_login=>false</code> will force all authentication to go through the SAML identity provider, bypassing <code>wp-login.php</code>. Similiarly, <code>auto_provision=>false</code> will disable automatic creation of new WordPress users.
See installation instructions for full configuration details.
<h3>Installing SimpleSAMLphp</h3>
The plugin supports both SimpleSAMLphp v1.x and v2.x. The autoloader is automatically detected:
SimpleSAMLphp v2.x uses <code>vendor/autoload.php</code> 
SimpleSAMLphp v1.x uses <code>lib/_autoload.php</code>
<h4>Default Search Paths</h4>
The plugin automatically searches for SimpleSAMLphp in these locations: 
* <code>ABSPATH . 'simplesaml'</code> 
* <code>ABSPATH . 'private/simplesamlphp'</code> 
* <code>ABSPATH . 'simplesamlphp'</code> 
* <code>ABSPATH . 'vendor/simplesamlphp/simplesamlphp'</code> (Composer installation) 
* <code>plugin_dir_path . 'simplesamlphp'</code>
For each path, the plugin checks for both <code>vendor/autoload.php</code> (v2.x) and <code>lib/_autoload.php</code> (v1.x).
This means Composer installations work automatically! If you run <code>composer require simplesamlphp/simplesamlphp</code> in your site root, the plugin will find it without any additional configuration.
<h4>Composer Installation (Advanced)</h4>
If you install SimpleSAMLphp via Composer to a custom location (not the standard <code>vendor/simplesamlphp/simplesamlphp</code>), you can specify the autoloader path:
<pre><code>add_filter( 'wp_saml_auth_option', function( $value, $option_name ) {
 if ( 'simplesamlphp_autoload' === $option_name ) {
 // Point to your custom Composer vendor autoloader
 return '/custom/path/vendor/autoload.php';
 }
 return $value;
}, 10, 2 );
</code></pre>
<h4>Custom Installation Paths</h4>
If SimpleSAMLphp is installed in a non-default location, you can set custom search paths with the <code>wp_saml_auth_simplesamlphp_path_array</code> filter:
<pre><code>add_filter( 'wp_saml_auth_simplesamlphp_path_array', function( $simplesamlphp_path_array ) {
 // Override default paths with custom paths
 return [ '/custom/path/to/simplesamlphp' ];
} );
</code></pre>
Or define an explicit autoloader path with the <code>wp_saml_auth_ssp_autoloader</code> filter:
<pre><code>add_filter( 'wp_saml_auth_ssp_autoloader', function( $ssp_autoloader ) {
 return ABSPATH . 'path/to/simplesamlphp/vendor/autoload.php';
} );<h3>WP-CLI Commands</h3>
</code></pre>
This plugin implements a variety of <a href="https://wp-cli.org" rel="nofollow ugc">WP-CLI</a> commands. All commands are grouped into the <code>wp saml-auth</code> namespace.
<pre><code>$ wp help saml-auth

NAME

 wp saml-auth

DESCRIPTION

 Configure and manage the WP SAML Auth plugin.

SYNOPSIS

 wp saml-auth <command>

SUBCOMMANDS

 scaffold-config Scaffold a configuration filter to customize WP SAML Auth usage.
</code></pre>
Use <code>wp help saml-auth <command></code> to learn more about each command.
Note: The <code>scaffold-config</code> command generates a configuration function with default values. The <code>simplesamlphp_autoload</code> option is not included in the scaffolded output because the plugin auto-detects SimpleSAMLphp installations. Only add this option manually if SimpleSAMLphp is in a non-standard location.
<h3>Contributing</h3>
See <a href="https://github.com/pantheon-systems/wp-saml-auth/blob/main/CONTRIBUTING.md" rel="nofollow ugc">CONTRIBUTING.md</a> for information on contributing.

WP SAML Auth

rsecurewp

Rainbow Secure’s MFA and SSO Plugin provides enterprise-level protection with customizable authentication workflows to secure your website and user accounts from credential theft, brute-force attacks, phishing, and more. Empower your users with secure and seamless logins, while protecting your site from cyber threats.
Key Features:
<ol>
<li>
Multi-Factor Authentication (MFA) 
Safeguard your WordPress site with various MFA options, including:
<ul>
<li>Formatted Passwords: Customize passwords with additional layers like color and style. </li>
<li>OTP Challenges: Receive OTPs via Email, SMS, or Mobile App for every login attempt. </li>
<li>Adaptive Authentication: Security adjusted based on device, time of access, location, and behavior. </li>
<li>Remember Device: Trusted devices can be whitelisted to reduce repeated MFA prompts. </li>
<li>Location-based MFA: Define trusted work locations for seamless, secure access. </li>
</ul>
</li>
<li>
Single Sign-On (SSO) 
Simplify login for your users with SSO integration:
<ul>
<li>Supports SAML, Integrate with 1000+ SaaS applications including Microsoft Office, Google Workspace, Salesforce, Zoom, Canva, Stripe, Cloud Providers including Azure AD, AWS, Google, IAM providers including Entra, Okta, Ping Identity.</li>
<li>User provisioning and de-provisioning for automatic WordPress account management. </li>
<li>Role mapping and session management across multiple apps. </li>
</ul>
</li>
<li>
Customizable Security Policies 
Define security rules tailored to your organization’s needs:
<ul>
<li>Set Conditional Access rules based on IP, role, location, or time. </li>
<li>Restrict access to trusted devices or enforce custom password policies with Rainbow Secure features. </li>
<li>Role-based access control ensures only authorized users reach key areas of your site. </li>
</ul>
</li>
<li>
Compliance and Reporting 
Achieve regulatory compliance and maintain control over user activities:
<ul>
<li>GDPR & CCPA compliance: Tools to manage user data privacy with export and deletion capabilities. </li>
<li>Audit logs: Track login attempts and SSO/MFA activity for accountability and monitoring. </li>
<li>Secure data transmission with AES-256 encryption for credentials and tokens. </li>
</ul>
</li>
<li>
WooCommerce & BuddyPress Integration 
Protect your eCommerce transactions with WooCommerce support, and extend MFA and SSO security to BuddyPress for community sites.
</li>
<li>
Custom Branding & Login Flows 
Customize your login screens with your brand’s logos and colors, and create passwordless login options for a seamless, secure user experience.
</li>
<li>
Premium Support & Enterprise Features 
Enjoy 24/7 priority support and enterprise-grade features such as load balancing, high availability, and multi-factor backups for scaling your security.
</li>
</ol>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later. For more information, see the <a href="https://www.gnu.org/licenses/gpl-2.0.html" rel="nofollow ugc">GNU General Public License</a>.

Rainbow Secure – Advanced MFA & SSO Plugin

Boost your WordPress site’s security with advanced multi-layer MFA and seamless SSO integration.

WP SAML Auth vs Rainbow Secure – Advanced MFA & SSO Plugin