The Vayu Blocks – Gutenberg Blocks for WordPress & WooCommerce plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on the 'vayu_blocks_get_toggle_switch_values_callback' and 'vayu_blocks_save_toggle_switch_callback' function in versions 1.0.4 to 1.2.1. This makes it possible for unauthenticated attackers to read plugin options and update any option with a key name ending in '_value'.