Fix vulnerable.

app/controllers/faqs_controller.rb

@@ -35,7 +35,7 @@ class FaqsController < ApplicationController
 
   def show
     params = OrbitHelper.params
-    faq = Qa.can_display.find_by_param(params[:uid])
+    faq = Qa.can_display.find_by_param(params[:uid].to_s)
 
     url_to_edit = OrbitHelper.user_can_edit?(faq) ? "/admin/faqs/#{faq.id.to_s}/edit" : ""