Input validation vulnerability in Drag and Drop Multiple File Upload for WooCommerce 1.1.0

The Drag and Drop Multiple File Upload for WooCommerce plugin for WordPress is vulnerable to malicious code being included in webpages. This malicious code can be inserted into a webpage by an unauthenticated attacker. If someone visits a webpage with this malicious code, it will be executed, allowing the attacker to take control of the page. This vulnerability exists in versions up to and including 1.1.0 due to inadequate checking of the file type.