Product Table by WBW < 1.8.7 - Cross-Site Request Forgery via saveGroup

Description

The Product Table by WBW plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.8.6. This is due to missing or incorrect nonce validation on the saveGroup function. This makes it possible for unauthenticated attackers to modify product groups via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.