The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Five Star Business Profile and Schema WordPress plugin before 2.1.7 does not have any authorisation and CSRF in its bpfwp_welcome_add_contact_page and bpfwp_welcome_set_contact_information AJAX action, allowing any authenticated users, such as subscribers, to call them. Furthermore, due to the lack of sanitisation, it also lead to Stored Cross-Site Scripting issues