The permissions are fine. I can install plugins and upload files to it just fine through wp-admin. However, when activating the WP Photo Album Plus plugin, it tries to install the various folder in:
/usr/share/wordpress/wp-content/uploads
instead of
/usr/share/wordpress/wp-content/hack/uploads
It doesn’t have rights to instead in wp-content/uploads but it does have permission to do it in wp-content/hack/uploads.