CiviCRM contribution pages allow you to generate a «widget» showing the progress toward a goal. This plugin makes it easy to include one or more contribution page «widgets» as actual WordPress widgets on your sidebar.
This plugin requires CiviCRM 4.3 or higher.
Read more at http://aghstrategies.com/civicontribute-widget
Te puedes descargar este plugin para utilizarlo en tu instalación autoalojada de WordPress.