You can change the FTP password from cPanel using the following steps:
- Login to cPanel.
- Go to the 'FTP Accounts' in the 'File' section.
- Scroll down and look for your user.
- Select 'Change password' from the drop-down menu in the 'Functions' column.
- The next screen will ask you for a new password. Supply the new strong password two times (password and confirm password).
- Click the 'Change' button.