WooCommerce - Social Login <= 2.7.3 - Missing Authorization to Unauthenticated Privilege Escalation

The WooCommerce - Social Login plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'woo_slg_login_email' function in all versions up to, and including, 2.7.3. This makes it possible for unauthenticated attackers to change the default role to Administrator while registering for an account.