Auto Alt Text < 2.5.3 - Cross-Site Request Forgery

Description

The Auto Alt Text plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.5.2. This is due to missing or incorrect nonce validation on the handleAltTextBulkAction() function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted they can trick a site administrator into performing an action such as clicking on a link.