WPScan is a black box WordPress vulnerability scanner.Step 1 :

To install wpscan and her related packages.

sudo apt-get install git libcurl4-gnutls-dev libruby libxml2 libxml2-dev libxslt1-dev ruby1.9.1-dev

sudo -sH
cd /opt
git clone https://github.com/wpscanteam/wpscan.git

cd wpscan

sudo gem install bundler

sudo bundle install --without test developement

Step 2 :

To run it.

sudo -sH
cd /opt/wpscan

./wpscan.rb --url http://www.samiux.com

Step 3 :

To update it.

sudo -sH
cd /opt/wpscan

./wpscan.rb --update