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Install cPAddons Site Software - 11.52 Documentation - cPanel Documentation
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For cPanel & WHM version 11.52

(Home >> cPanel >> Install cPAddons Site Software)


This set of features allows you to add and manage cPAddons and vendors. cPAddons are applications that work with cPanel & WHM to perform functions for your users’ websites. Examples of these applications include bulletin boards, online shopping carts, and blogs.

Install a cPAddon

To install a cPAddon, perform the following steps:

  1. Select the Installed checkbox next to the cPAddon that you wish to install.
  2. To force all of your installed cPAddons to update, select the Force Refresh of All cPAddon Sources checkbox.


    This option is useful if you believe that your cPAddons are corrupt.

  3. Click Update cPAddon Config. A new interface will appear.
  4. Click Back when the installation completes to return to the Install cPAddons Site Software interface.


  • Some cPAddons have low ratings because of security problems that are inherent to PHP code.
  • For more information about how to harden your PHP configuration, read our PHP Security Concepts documentation.

Enable cPAddons

The system does not enable any cPAddons that you install by default. To enable the cPAddons that you installed, navigate to WHM’s Feature Manager interface (Home >> Packages >> Feature Manager) and perform the following steps:

1. Select the desired feature list from the Manage feature list menu and click Edit.
2. Select the cPAddons’ checkboxes to enable the features.
3. Click Save.

Add new vendors

To add cPAddons to the list in this interface, perform the following steps:

  1. Enter the URL that you obtained from the cPAddon vendor in the Vendor’s Information URL text box.
    • To add several vendors at the same time, select the number of URLs that you wish to enter from the Add additional vendor URL fields menu, and then click Add additional URL fields. WHM will display the number of text fields that you requested.
  2. Click Update Vendors. A new interface will appear.
  3. When the installation is complete, click Back to return to the Install cPAddons Site Software interface.


The Add/Remove Vendors feature allows third parties to create and distribute their own cPAddons.

Delete a vendor

To delete a vendor, perform the following steps:

  1. In the Add/Remove Vendors* section of the interface, under the Remove column, select the checkbox for the vendor that you wish to delete.
  2. Click Update Vendors. The system will display a new interface and a confirmation message.
  3. Click Back to return to the Install cPAddons Site Software interface.


You cannot remove individual cPAddons from the list of available cPAddons.

cPAddon data after deletion

When you remove a cPAddon vendor, WHM also removes that vendor's cPAddons and their data.

  • If the cPAddon created the database, and no other cPAddons use it, WHM drops the database entirely. This includes any user-created tables.
  • If the cPAddon that you remove did not create the database, or if another cPAddon currently uses that database, WHM only drops the tables that correspond to that cPAddon. This can potentially lead to an empty database on the server.
  • We recommend that you delete any other cPAddons that share a database before you delete the cPAddon that initially created the database. If you delete the cPAddon that created the database first, an empty database will remain on the server.

Manually delete empty cPAddon databases in cPanel's  MySQL Databases  interface (Home >> Databases >> MySQL Databases).