Fix #112 Multiple redirections detection

lib/wpscan/modules/web_site.rb

@@ -70,8 +70,9 @@ module WebSite
     @xmlrpc_url
   end
 
-  # see if the remote url returns 30x redirect
-  # return a string with the redirection or nil
+  # See if the remote url returns 30x redirect
+  # This method is recursive
+  # Return a string with the redirection or nil
   def redirection(url = nil)
     redirection = nil
     url ||= @uri.to_s
@@ -79,6 +80,11 @@ module WebSite
 
     if response.code == 301 || response.code == 302
       redirection = response.headers_hash['location']
+
+      # Let's check if there is a redirection in the redirection
+      if other_redirection = redirection(redirection)
+        redirection = other_redirection
+      end
     end
 
     redirection