Greenshift < 13.2.1 - Reflected Cross-Site Scripting via '{{GET:}}' Dynamic Placeholder

Description

The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via '{{GET:}}' Dynamic Placeholder in all versions up to, and including, 13.2.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This requires a site administrator to have configured an element block's Custom JS field to include a {{GET:...}} placeholder and for that JS to contain the token 'import', which routes the substituted value to the unescaped raw echo branch inside a <script type="module"> tag.