idgold

Open Access SSO is a SAML 2.0 Service Provider for WordPress. It lets users sign in to your site through any standard SAML identity provider (Microsoft Entra ID, Okta, OneLogin, Keycloak, ADFS, Shibboleth, NetIQ Access Manager, etc.) instead of (or alongside) the built-in WordPress login form.
Built from scratch as a clean-room implementation. Fully open-source under GPLv2+. No paid tier, no telemetry. Its only third-party libraries are xmlseclibs (MIT) for XML signature handling and phpseclib (MIT) for RSA-OAEP key unwrapping — both bundled, and neither makes any network call.
<h4>What it does</h4>
<ul>
<li>SAML 2.0 SP with HTTP-Redirect and HTTP-POST bindings, signed AuthnRequests, signed/encrypted assertion handling, SP-initiated and IdP-initiated Single Logout.</li>
<li>Multi-IdP — configure multiple identity providers, let users choose via a button or URL parameter (<code>?idp=slug</code>).</li>
<li>Attribute mapping — map SAML attributes to WordPress user fields (first name, last name, email, display name, plus arbitrary user_meta).</li>
<li>Role mapping — assign WordPress roles based on SAML attribute values, with exact / contains / regex match types, per-IdP rule sets, deny-unmapped option, default-role fallback.</li>
<li>Page access control — restrict pages, posts, and custom post types to specific roles or to “logged in via SSO” users; per-page meta box; <code>[oasso_restrict]</code> shortcode.</li>
<li>WooCommerce integration (optional) — map SAML attributes to WooCommerce customer fields; auto-link SSO users to existing customers.</li>
<li>Audit log with configurable retention.</li>
<li>Force-SSO mode with emergency bypass via <code>OASSO_BYPASS</code> constant in <code>wp-config.php</code>.</li>
</ul>
<h4>Privacy</h4>
This plugin’s only outbound HTTP requests go to the IdP metadata URL you enter: once when an administrator clicks “Fetch IdP Metadata from URL”, and — only if you turn on the optional certificate-rotation check for an IdP — on a recurring WP-Cron schedule that re-fetches that same URL. Certificate-rotation checks are disabled by default. No telemetry, no analytics, no calls to any third-party service. All configuration is stored in <code>wp_options</code> on your own site.
<h4>Requirements</h4>
<ul>
<li>WordPress 6.0+</li>
<li>PHP 8.1+</li>
<li>A SAML 2.0 identity provider you control or have access to.</li>
</ul>
<h3>External Services</h3>
This plugin is a SAML 2.0 Service Provider (SP). It sends no telemetry or analytics and never connects to any service operated by the plugin author. Its only external interactions are with the SAML Identity Provider (IdP) that you, the site administrator, configure — for example Microsoft Entra ID, Okta, OneLogin, Keycloak, ADFS, Shibboleth, or NetIQ Access Manager. There is no built-in or default IdP; the IdP is chosen and operated by you or your organisation.
<h4>Identity Provider metadata fetch</h4>
When an administrator clicks “Fetch IdP Metadata from URL” in the plugin’s admin screens, the plugin makes a single server-side HTTP GET request to the metadata URL the administrator entered. No site or user data is sent beyond a standard HTTP request; the response (SAML metadata XML) is parsed and stored in your site’s database. This never happens on the front end.
Optionally, you can enable a certificate-rotation check for an IdP (off by default). When enabled, WP-Cron re-fetches that same administrator-entered metadata URL on a schedule (for example daily) so the plugin can warn you before the IdP’s signing certificate expires or changes. This is the only automatic outbound request the plugin makes, it is opt-in per IdP, and it contacts only the metadata URL you configured.
<h4>SAML single sign-on flow</h4>
When a visitor signs in through SSO, their browser is redirected to your configured IdP (carrying a standard SAML AuthnRequest). After the visitor authenticates, the IdP returns a signed SAML assertion to your site, which the plugin validates and uses to create or update the corresponding WordPress user. The data exchanged is the SAML authentication request and response — which includes the user identifier and whatever attributes your IdP is configured to release. This exchange happens only when a visitor initiates an SSO login.
Because the IdP is a service you select and operate (or that your organisation operates), its terms of service and privacy policy are defined by that provider. Consult your chosen identity provider’s own documentation for those terms (for example, the privacy and terms pages of Microsoft Entra ID, Okta, OneLogin, etc.).

Open Access SSO

Open-source SAML 2.0 SSO and access control. Map identity-provider attributes to WordPress roles. Multi-IdP, GPL-licensed.

samlsso

Keywoot

================ WARNING ==============================
‼️ Important: This plugin is deprecated and no longer maintained.
This plugin has been discontinued due to issues discovered during a recent review that prevent us from continuing to work on it. To ensure user safety, reliability, and compliance with platform requirements, we have withdrawn active development and updates. The plugin will no longer receive bug fixes, improvements, or security patches.
We recommend switching to a supported alternative to maintain a stable and secure environment.
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Keywoot’s SAML Single Sign On plugin transforms your WordPress site into a SAML Service Provider (SAML SP), enabling it to securely authenticate users through any SAML 2.0 compliant Identity Provider (IdP). Users can log in or register on your site via SAML SSO with various Identity Providers.
This plugin is compatible with IdPs including Okta, Keycloak, Azure AD, Google Workspace, Salesforce, ADFS, Shibboleth, OneLogin, Auth0, Microsoft Entra ID, and others. It ensures a secure authentication experience, making it ideal for businesses, educational institutions, or community sites that want simplified access for employees, students, or members.
<h3>Need Help or Have Questions?</h3>
For any queries or support, feel free to reach out to us at: <a href="mailto:support@keywoot.com" rel="nofollow ugc">support@keywoot.com</a> 
Our team is dedicated to providing you with the best support possible.
<h3>Why Use This Plugin</h3>
<ul>
<li>
Simplified Login: Use a single set of credentials for authentication. The plugin eliminates the need for multiple passwords while maintaining high security standards. Users authenticate once via their Identity Provider and gain access to your site.
</li>
<li>
Security First: The plugin uses the secure SAML protocol for authentication, ensuring user data stays protected. Once authenticated via the Identity Provider, users can access your site without additional logins.
</li>
<li>
Unlimited Authentications: Whether you have a small team or a large organization, this plugin provides unlimited authentications. It is compatible with 40+ SAML Identity Providers including Azure AD, Azure B2C, ADFS, Keycloak, Google Workspace, Okta, Salesforce, Office 365, Shibboleth, Auth0, and more.
</li>
<li>
Automatic Attribute Mapping: The plugin automatically maps required WordPress attributes like email and username with NameID from the Identity Provider. This ensures each user created is unique.
</li>
</ul>
<h3>Premium Features</h3>
<ul>
<li>Advanced Attribute Mapping: Detailed control over user profile attributes, mapping attributes from IdP to WordPress.</li>
<li>Advanced Role Mapping: Assign roles during login based on SAML IdP groups or attributes.</li>
<li>Force SSO for Site Access: Redirect users to IdP for authentication and enforce authentication on site visit.</li>
<li>Single Logout: Logout from all sessions, including the IdP, in one click.</li>
<li>Force Authentication: Authenticate users on the IdP each time they log in, even if the IdP login session exists.</li>
<li>Custom Redirection: Redirect users to any page after authentication or logout.</li>
<li>Restrict Access (Attribute Based): Restrict user access based on certain attribute values from the IdP.</li>
<li>Restrict Access (Domain Based): Prevent login based on the user’s email domain.</li>
<li>Metadata Synchronization: Upload and sync IdP metadata easily on regular intervals automatically.</li>
<li>Custom Certificates: Add and use custom X.509 certificates for enhanced security.</li>
</ul>
With these features, your WordPress site becomes a secure and versatile SAML Service Provider.
<h3>Supported Identity Providers (IdP)</h3>
This WordPress SAML SSO plugin is compatible with any SAML 2.0-compliant Identity Provider, enabling seamless single sign-on integration for your WordPress site. Whether you’re using enterprise SSO solutions, cloud-based identity providers, or on-premises authentication systems, this plugin provides secure SAML authentication that works with standard SAML 2.0 protocols.
Our plugin has been successfully tested and is compatible with leading enterprise SSO solutions including:
<ul>
<li>Microsoft: Office 365, Azure AD (Microsoft Entra ID), Azure B2C, ADFS (Active Directory Federation Services)</li>
<li>Google: Google Workspace (formerly G Suite)</li>
<li>Salesforce: Salesforce Identity and Salesforce SSO</li>
<li>Okta: Okta Single Sign-On</li>
<li>Keycloak: Open-source identity and access management</li>
<li>Auth0: Identity platform for web and mobile applications</li>
<li>OneLogin: Unified access management platform</li>
<li>Shibboleth: Federated identity solution for education and research</li>
<li>Ping Identity: PingFederate, PingAccess, PingOne</li>
<li>Centrify: Identity and access management platform</li>
<li>Duo Security: Duo SSO</li>
<li>AWS: AWS IAM Identity Center and AWS Cognito</li>
<li>ForgeRock: ForgeRock Identity Platform</li>
<li>CA Identity (Broadcom)</li>
<li>RSA: RSA SecureID and RSA SecurID Access</li>
<li>VMware: VMware Workspace ONE Access</li>
<li>AuthAnvil: AuthAnvil Single Sign-On</li>
<li>Gluu Server: Open source identity and access management</li>
<li>WSO2: WSO2 Identity Server</li>
<li>LastPass: LastPass Enterprise SSO</li>
<li>AbsorbLMS: AbsorbLMS Learning Management System</li>
</ul>
Each SAML SSO integration follows standard SAML 2.0 authentication protocols, allowing users to authenticate once through their Identity Provider and gain seamless, secure access to your WordPress site without additional login credentials. This WordPress SAML plugin works with almost any SAML 2.0-compliant Identity Provider, making it ideal for enterprise WordPress deployments, educational institutions, government organizations, and businesses requiring secure single sign-on authentication. If your organization uses a SAML 2.0-compatible IdP, you can integrate it with this WordPress SSO plugin for seamless user authentication and access management.
NOTE: This plugin is designed to work with SAML 2.0-compliant Identity Providers (IdPs). Throughout this documentation, we reference various Identity Provider names (such as Azure AD, Okta, Auth0, Google Workspace, Keycloak, OneLogin, Salesforce, Shibboleth, ADFS, and others) solely for the purpose of describing compatibility and interoperability. These references indicate that the plugin has been tested to work with these services using the standard SAML 2.0 protocol.
Important: 
– This plugin is not affiliated with, endorsed by, or sponsored by any Identity Provider service mentioned in this documentation. 
– All product names, trademarks, registered trademarks, company names, and service names are the property of their respective owners. 
– All references to Identity Provider names are made solely for identification and compatibility description purposes under nominative fair use. 
– Use of these names does not imply any endorsement, affiliation, partnership, or relationship between this plugin and the Identity Provider services. 
– This plugin is an independent product and is not associated with any of the Identity Provider services referenced.
<h3>Source Code</h3>
This plugin includes both source and minified JavaScript and CSS files.
JavaScript: 
– Source: <code>assets/js/kwsso-admin-settings.js</code> 
– Minified: <code>assets/js/kwsso-admin-settings.min.js</code>
CSS: 
– Source: <code>assets/css/kwsso-admin-base.css</code> and <code>assets/css/kwsso-admin-custom-style.css</code> 
– Minified: <code>assets/css/kwsso-admin-base.min.css</code> and <code>assets/css/kwsso-admin-custom-style.min.css</code>
Dependencies: 
This plugin uses Composer for dependency management. The <code>composer.json</code> file is located in the plugin root directory. To install dependencies, run <code>composer install</code> in the plugin directory.
The plugin uses the following third-party library: 
– litesaml/lightsaml (^4.5): A PHP library for SAML 2.0 protocol implementation, used for handling SAML authentication requests, responses, and metadata processing.
All PHP source code is located in the <code>src/</code> directory, organized by functionality (admin, data, helper, service, public, utility).

SAML SSO Login – Single Sign On

‼️ Important: This plugin is deprecated and no longer maintained.

Open Access SSO vs SAML SSO Login – Single Sign On