The USB Qr Code Scanner For Woocommerce plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing nonce validation on the settings page. This makes it possible for unauthenticated attackers to update the plugin's settings via a forged request granted they can trick an administrator into performing an action such as clicking on a link.
CWE-352