Installing the GeoServer GeoFence WPS Integration
Visit the website download page, locate your release, and download: http://sourceforge.net/projects/geoserver/files/GeoServer/2.26.1/extensions/geoserver-2.26.1-geofence-wps-plugin.zip
The download link will be in the Extensions section under Other.
Warning
Ensure to match plugin (example 2.26.1 above) version to the version of the GeoServer instance.
Extract the files in this archive to the
WEB-INF/lib
directory of your GeoServer installation.Restart GeoServer