Barcode Scanner with Inventory & Order Manager < 1.5.5 - Cross-Site Request Forgery

Description

The Barcode Scanner with Inventory & Order Manager plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.5.4. This is due to missing or incorrect nonce validation on the pageSettingsUpdate() function. This makes it possible for unauthenticated attackers to update plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.