AMP for WP < 1.0.97 - Missing Authorization

Description

The AMP for WP plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on several functions like 'enable_amp_pagebuilder' and 'amppb_save_layout_data' in versions up to, and including, 1.0.96.1. This makes it possible for authenticated attackers, with contributor-level access and above, to update settings and layouts.