Cassava CAS Server
by Luis Rodrigues 5 (2 reviews)

Cassava CAS Server

Cassava provides authentication services based on the Jasig CAS protocol.

Cassava CAS Server ranks #24,100 among WordPress.org plugins with 30+ active installations, is #528 of 1,589 in the Authentication category, a 5/5 rating from 2 reviews, and was last updated Feb 13, 2016. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 4.4.34 (Current: 7.1.1)
v1.2.3 Current Version v1.2.3
Updated 10 years ago Last Update on 13 Feb, 2016
Refreshed 7 hours ago Last Refreshed on
#528 of 1,589 in Authentication Top 50% by installs No update in over a year
View on WordPress.org
Rank
#24,100
No change
Active Installs
30+
-21.1%
KW Avg Position
46
0.3 better
Downloads
3.4K
+1 today
Support Resolved
0%
No change
Rating
100%
Review 5 out of 5
5 (2 reviews)

Next Milestone 40

Total Progress 50%
30+ 40+
2,061
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
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Rank Changes

23,701 23,864 24,027 24,190 24,353 15-09-2026 16-09-2026 17-09-2026 18-09-2026 19-09-2026 20-09-2026 21-09-2026 22-09-2026
23,619 23,805 23,992 24,178 24,364 07-09-2026 08-09-2026 09-09-2026 10-09-2026 11-09-2026 12-09-2026 13-09-2026 14-09-2026 15-09-2026 16-09-2026 17-09-2026 18-09-2026 19-09-2026 20-09-2026 21-09-2026 22-09-2026
Current #24,100
Change
Best #

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Active Installs Growth

Active Installs 0,000,000+
Growth +0.0%
Peak 0,000,000

Downloads Growth

0 10 15-09-2026 16-09-2026 17-09-2026 18-09-2026 19-09-2026 20-09-2026 21-09-2026 22-09-2026
0 10 07-09-2026 08-09-2026 09-09-2026 10-09-2026 11-09-2026 12-09-2026 13-09-2026 14-09-2026 15-09-2026 16-09-2026 17-09-2026 18-09-2026 19-09-2026 20-09-2026 21-09-2026 22-09-2026
Downloads
Growth
Peak

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Reviews & Ratings

5.0
2 reviews
Overall 100%
5
2 (100%)
4
0 (0%)
3
0 (0%)
2
0 (0%)
1
0 (0%)

Frequently Asked Questions

Common questions about Cassava CAS Server

The CAS protocol requires three entities to function: the user's web browser, a web application requesting authentication, and a CAS server as implemented by this plugin. When a user accesses an application and attempts to authenticate to it, the application sends the user to the CAS server for validation. The CAS server will look for an active session or else explicitly request the user to insert their credentials. Upon authenticating the user, the CAS server returns the user to the application they came from along with a security ticket. Behind the scenes, the application then contacts the CAS server over a secure connection to independently verify that the security ticket is valid. The CAS server responds with information about the user's status, confirming they are who they claim to be.
Yes. Because applications trade security tickets via HTTP requests, it is very important that this information be encrypted so as not to be easily intercepted. By running a single sign-on service over an unencrypted channel such as plain HTTP, you would be at considerable risk of allowing unauthorized persons into your network.
If you suspect someone may have compromised the integrity of the security tickets generated by the CAS server, you should immediately generate a new set of secret keys and swap them out in WordPress's wp-config.php file.
The plugin requires the PHP DOM extension to generate and read XML data, and the error is likely due to the extension not being installed on the server. While the extension is enabled by default on most setups, some systems require manual activation. It may also have been disabled by a systems administrator. Depending on your operating system, you may be able to install it by running yum install php-dom (RPM) or apt-get install php5-dom (APT). If not, contact your hosting provider or systems administrator to enable it for you.
By default, the plugin provides methods under the wp-cas endpoint. So, if you're configuring a CAS client to authenticate using your server at https://www.my-site.com/, then the full URI should be something like https://www.my-site.com/wp-cas/. The endpoint may be changed at any time by navigating to Settings > Permalinks in the dashboard. Bear in mind that if you change the endpoint you will also need to reconfigure all CAS clients currently using the service.
To return user data along with a validation response, navigate to Settings > Cassava CAS Server and check the attributes you want the server to return. Only versions 2.0 and above of the protocol can disclose user attributes, these options will not change how the earlier CAS 1.0 validation method works. Also note that making user attributes visible does not guarantee the remote application will use them.
At the moment, the only way to change the plugin's behaviour is through the Hooks API. Please refer to the Other Notes page for a list of actions and filters supported by the plugin.
You may peruse the CAS protocol specifications in complete detail at the official project site.
Cassava sets and receives Service Tickets (ST), Proxy-Granting Tickets (PGT), Proxy-Granting Ticket IOUs (PGTIOU) and Proxy Tickets (PT).

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