Understanding cpaddons in cPanel — What It Is & How to Manage It

What is cpaddons?

cpaddons (cPanel Add-ons) is a feature in cPanel that allows users to install, update, and manage additional software such as:

For related cPanel installer / management topics, see "Installation already exists" — Softaculous Fix, cpsrvd — cPanel Service Daemon, cpsess in cPanel & WHM, and Understanding the .cagefs Folder in CloudLinux.

• CMS platforms (WordPress, Joomla, Drupal)
• E-commerce tools (PrestaShop, Magento)
• Forums & blogs (phpBB, b2evolution)

These add-ons are managed through WHM and can be installed directly from the cPanel interface.

How to Manage cpaddons in WHM (For Administrators)

Enable cpaddons in WHM

If the feature is missing or disabled, enable it in WHM:

1. Log in to WHM (https://yourserver.com:2087)
2. Navigate to cPanel > Install cPAddons Site Software
3. Enable "Allow users to install add-ons"
4. Click Save Settings

Now users can install software from cPanel.

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Install Software Using cpaddons in cPanel

1. Log in to cPanel
2. Go to Site Software
3. Select the software you want to install (e.g., WordPress)
4. Click Install and follow the setup wizard

The selected add-on will be installed and ready to use.

Updating cpaddons Software

To keep installed add-ons secure and up to date, run:

/usr/local/cpanel/bin/cpaddonsup

This updates all installed cpaddons.

You can also enable automatic updates in WHM > cPAddons Settings.

Remove or Disable cpaddons

If you no longer want users to install add-ons:

1. Log in to WHM
2. Go to Feature Manager
3. Uncheck cPAddons Site Software
4. Save changes

This will disable the feature in cPanel.

Troubleshooting cpaddons Issues

Now cpaddons should be working properly!