Cloudbridge Mattermost
Mattermost integration for WordPress. Tested with Mattermost 5.30.1+ and WordPress 5.5+.
Use with caution
Cloudbridge Mattermost works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites, is rated 5/5 and was last updated 8 months ago, and scores 45/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- Only tested up to WordPress 6.9 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Cloudbridge Mattermost stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cloud | >100 |
| integration | >100 |
| Mattermost | #1 |
| Notifications | >100 |
| security | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 1 reviews
About Cloudbridge Mattermost
From the official readme · v2.2.3Description
This WordPress plugin provides integration with Mattermost.
The plugin provides OAuth2 authentication functionality for logging into WordPress via Mattermost.
The plugin provides OAuth2 authentication functionality for registering new WordPress users via Mattermost.
The plugin additionally provides the following notification functionality, using an incoming webhook in Mattermost:
- Notifications for successful login
- Notifications for failed login
- Notifications for unknown user login attempt
- Notifications for password reset
- Notifications for plugin activation
- Notifications for plugin deactivation
- Notifications for plugin uninstallation
- Notifications for new/edited user
- Notifications for deleted user
The plugin can also make use of additional functionality such as posting to a specific channel/user, overriding bot names, and additionally mention specific users.
Other notes:
- This plugin may work with earlier versions of WordPress
- This plugin has been tested with WordPress 5.5.3 to 6.9.x at the time of this writing
- This plugin has been tested with Mattermost 5.x to 11.x at the time of this writing
- This plugin has been tested with PHP 7.4.x, 8.1.x, 8.2.x, and 8.3.x at the time of this writing
- This plugin optionally makes use of the
mb_PHP functions - This plugin may create entries in your PHP error log (if active)
- This plugin contains no Javascript
- This plugin contains no tracking code and does not process or store any information about users
Credits
Copyright 2020-2026 Joaquim Homrighausen; all rights reserved.
The Cloudbridge Mattermost WordPress Plugin was written by Joaquim Homrighausen while converting caffeine into code.
Cloudbridge Mattermost is sponsored by WebbPlatsen i Sverige AB, Stockholm, Sweden.
Commercial support and customizations for this plugin is available from WebbPlatsen i Sverige AB in Stockholm, Sweden.
If you find this plugin useful, the author is happy to receive a donation, good review, or just a kind word.
If there is something you feel to be missing from this plugin, or if you have found a problem with the code or a feature, please do not hesitate to reach out to support@webbplatsen.se.
This plugin can also be downloaded from code.webbplatsen.net and GitHub
Installation
This section describes how to install the plugin and get it working.
- Upload the contents of the
cloudbridge-mattermostfolder to the/wp-content/plugins/directory - Activate the plugin through the ‘Plugins’ menu in WordPress
- Configure the basic settings, such as the webhook URL
- To enable OAuth2 authentication, you’ll need to configure your Mattermost instance to allow this: OAuth 2.0 Applications
Frequently asked questions
Is the plugin locale aware
Cloudbridge Mattermost uses standard WordPress functionality to handle localization/locale. The native language localization of the plugin is English. It has been translated to Swedish by the author. For notifications sent to Mattermost, there is a setting since 1.1.0 that will allow you to override all such messages to be in en_US locale (English).
Are there any incompatibilities
This is a hard question to answer. There are no known incompatibilities.
Is there a way to customize the Mattermost login button
The short answer is yes. The long answer follows: Add a filter hook in your functions.php or elsewhere like so: add_filter(‘cbmm_login_filter’, ‘name_of_your_function’, 10, 1); Your function will receive one argument, which is an associative array with three items: url, text, and full. The ‘url’ item contains the url to the OAuth2 handler for the plugin, you should not modify this. The ‘text’ item contains the prompt (“Use Mattermost to login”). The ‘full’ item contains the entire HTML output for the additional Mattermost login section on the WordPress login form. Your function should always…
What callback URL do I have to setup on Mattermost
The URL should be: https:///wp-content/plugins/mattermost/includes/cbmm-oauth2.php If your wp-content/plugins is not in a standard place, then you will need to replace that with the correct URL to it.
Changelog
Simply install/upgrade to 2.2.1 and walk through the settings
2.2.3
- Verified with Mattermost version 8-11 and WordPress 6.9.x
- Notifications are no longer sent for non‑standard login errors when all “Unsuccessful login” roles are unchecked (#2, itsumonotakumi)
- Fix override handling for Mattermost login/register button filter output
- Hardened OAuth2 post-login redirects to same-host only; external redirect_to values now fall back to admin/home
- Updated Composer dependencies (guzzlehttp/*, league/oauth2-client, symfony/deprecation-contracts) and removed paragonie/random_compat
2.2.2
- Verified with Mattermost 8.x, 9.x, 10.x and WordPress 6.8.x
- Thanks to Nelson (castillo-n) for various fixes (PR#1)
- Added missing property
$cbmm_site_labelto class - Removed use of
FILTER_SANITIZE_STRING(deprecated in PHP 8.1) - Removed use of uninitialized variables (exception handling)
2.2.1
- Refactor code to prevent warnings in PHP log while checking roles
- Verified with Mattermost 8.x, 9.x and WordPress 6.5.x
- Updated various dependencies
2.2.0
- Improved support for Mattermost accounts with 2FA/MFA enabled
- Added possibility to register new users via Mattermost
- Added possibility to register new users only via Mattermost
- Verified with Mattermost 7.x and WordPress 6.x
- Updated various dependencies
2.1.0
- Verified with WordPress 5.8
- Support for Cloudflare
- Minor fixes
2.0.0
- Added OAuth2 support, you can now login to WordPress via Mattermost!
- Changed emoji for admin link to a more suitable one (:link:)
For developers
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FAQ
Cloudbridge Mattermost: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 21, 2026
Is Cloudbridge Mattermost free?
Yes. Cloudbridge Mattermost is free to download and use from the official WordPress.org plugin directory.
Is Cloudbridge Mattermost safe to use in 2026?
Cloudbridge Mattermost works, but test it on a staging site before relying on it in 2026. It runs on 10+ sites, is rated 5/5 and was last updated 8 months ago, and scores 45/100 on our health check.
How many websites use Cloudbridge Mattermost?
Cloudbridge Mattermost is active on 10+ WordPress websites and has been downloaded 2,837 times since it launched in November 2020. It was downloaded 63 times in the last 30 days.
Does Cloudbridge Mattermost work with WordPress 7.1?
Cloudbridge Mattermost is officially tested up to WordPress 6.9.10, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does Cloudbridge Mattermost need?
Cloudbridge Mattermost requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Cloudbridge Mattermost last updated?
The latest version, 2.2.3, was released on February 11, 2026 (8 months ago).
Who makes Cloudbridge Mattermost?
Cloudbridge Mattermost is developed and maintained by joho68.
What are the best alternatives to Cloudbridge Mattermost?
The most popular alternatives to Cloudbridge Mattermost are Media Cloud Sync (1K+ installs), Offload Media (1K+ installs) and WFatture for WooCommerce Fa… (700+ installs).
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