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.

Cross-Site Request Forgery (CSRF) vulnerability in Advanced Booking Calendar plugin <= 1.7.1 on WordPress.

Unauth. SQL Injection (SQLi) vulnerability in Advanced Booking Calendar plugin <= 1.7.1 on WordPress.

The Advanced Booking Calendar WordPress plugin before 1.7.1 does not sanitise and escape the room parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue

The Advanced Booking Calendar WordPress plugin before 1.7.1 does not sanitise and escape the id parameter when editing Calendars, which could allow high privilege users such as admin to perform SQL injection attacks

The Advanced Booking Calendar WordPress plugin before 1.7.0 does not validate and escape the calendar parameter before using it in a SQL statement via the abc_booking_getSingleCalendar AJAX action (available to both unauthenticated and authenticated users), leading to an unauthenticated SQL injection

The Advanced Booking Calendar WordPress plugin before 1.6.8 does not sanitise the license error message when output in the settings page, leading to an authenticated reflected Cross-Site Scripting issue

The Advanced Booking Calendar WordPress plugin before 1.6.7 did not sanitise the calId GET parameter in the "Seasons & Calendars" page before outputing it in an A tag, leading to a reflected XSS issue