Cassava provides authentication services based on the Jasig CAS protocol.
As of April 2026, Cassava CAS Server is a WordPress cas plugin with 30 active installations and a 5/5 rating from 2 reviews. It has been downloaded 3.2K+ times in total. Requires WordPress 3.9+ and PHP false+. Available on WordPress.org since 2014. Last updated 10 years ago — may have compatibility concerns. Top alternative: Authorizer.
Cassava allows WordPress to act as a single sign-on authenticator using the Central Authentication Service (CAS) protocol.
That way, users on your WordPress install may be able to access different applications that support the CAS protocol by providing a single set of credentials and without exposing the user’s password.
By default, CAS method URIs are provided under the wp-cas endpoint:
/wp-cas/login: Allows a remote service to request that a user authenticate on the CAS server. Will redirect back to the remote service along with a service ticket./wp-cas/logout: Terminates the single sign-on session. May optionally redirect the user back to the remote service./wp-cas/validate [CAS 1.0]: Allows a remote service to validate a service ticket forwarded by the user on redirect. Retur…| WordPress | 3.9+ requiredTested up to 4.4.34 |
| PHP | false+ required |
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