WooCommerce <= 8.1.1 & WooCommerce Blocks <= 11.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Featured Image alt Attribute

Description

The WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a featured image 'alt' attribute in versions up to, and including, 8.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The WooCommerce Blocks plugin for WordPress is vulnerable to the same issue in versions up to, and including, 11.1.1.