Authorizer
Authorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).
5(19 reviews)
·5.0K+ active installs·Updated 3 months agoAs of April 2026, Authorizer is a WordPress cas plugin with 5.0K+ active installations and a 5/5 rating from 19 reviews. It has been downloaded 182K+ times in total. Requires WordPress 5.5+ and PHP 7.4+. Available on WordPress.org since 2015. Downloads are down 33% this week. Support resolution rate: 100%. Top alternative: WP Cassify.
5/519 reviews
5.0K+active installs
100%resolved
11 yearssince 2015
Overview
Authorizer restricts access to a WordPress site to specific users, typically students enrolled in a university course. It maintains a list of approved users that you can edit to determine who has access. It also replaces the default WordPress login/authorization system with one relying on an external server, such as Google, CAS, LDAP, or an OAuth2 provider. Finally, Authorizer lets you limit invalid login attempts to prevent bots from compromising your users’ accounts.
View or contribute to the plugin source on GitHub: https://github.com/uhm-coe/authorizer
Authorizer requires the following:
- CAS server (2.x, 3.x, 4.x, 5.x, 6.x, or 7.x) or LDAP server (plugin needs the URL)
- PHP extensions: php-ldap, php-curl, php-dom
Authorizer provides the following options:
- Authentication: WordPr…
Screenshots
Ratings & Reviews
519 reviews
5 ★
19
4 ★
0
3 ★
0
2 ★
0
1 ★
0
Recent Reviews
Super!!!
by oshurkov·1 year ago·1 reply
please update translate from: https://translate.wordpress.org/projects/wp-plugins/authorizer/
Everything worked very cool with LDAP! There is everything you need from the settings! Moreover, there is protection against brute force and you can close access to the site only for users. Super developer! Well done!
- This topic was modified 1 year ago by oshurkov.
Authorizer Plugin is Excellent
by JSL·1 year ago
I’m using Authorizer on WP Multisite, it works very well. I use Google Cloud > API’s & Services > Credentials for 2 factor authentication.
Note: if you get authentication errors try clearing your cache
Brilliant plugin & team behind it!
by svyatoslavnetrunner·3 years ago
This plugin strikes as created by really unique people, following best coding practices to achieve the best results.
Sencillo y práctico
by aleadco94·4 years ago
Un complemento que funcionalidad muy útiles que necesitamos en muchas entidades de educacionales. Sencillo y práctico.
Gracias.
Great plugin
by flim0·5 years ago
Very easy to setup and works with Active Directory.
Download Trends
Today: 20Yesterday: 24This week: 177Period total: 26K
Compatibility
| WordPress | 5.5+ requiredTested up to 6.9.4 |
| PHP | 7.4+ required |
Version Adoption
v3.13
70.8%
Other
11.7%
v3.11
10.8%
v3.12
6.8%
Top Alternatives to Authorizer
Frequently Asked Questions
Changelog
3.13.4
- Performance: only autoload plugin options used on every page. The change will take effect the next time the specific option is updated (e.g., the list of Approved Users). Props @raalknz for the suggestion!
- Update composer dependencies: phpseclib/phpseclib (3.0.47 => 3.0.48).
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.