The Tour Master - Tour Booking, Travel, Hotel plugin for WordPress is vulnerable to time-based SQL Injection via the ‘review_id’ parameter in all versions up to, and including, 5.3.7 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The tourmaster WordPress plugin before 5.3.5 does not escape generated URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.

The goodlayers-core WordPress plugin before 2.1.3 allows users with a subscriber role and above to upload SVGs containing malicious payloads.

The tourmaster WordPress plugin before 5.3.4 does not sanitise and escape some parameters when outputting them in the page, which could allow unauthenticated users to perform Cross-Site Scripting attacks.

The goodlayers-core WordPress plugin before 2.0.10 does not sanitise and escape some of its settings, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

The does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

An unauthenticated SQL Injection vulnerability in Good Layers LMS Plugin <= 2.1.4 exists due to the usage of "wp_ajax_nopriv" call in WordPress, which allows any unauthenticated user to get access to the function "gdlr_lms_cancel_booking" where POST Parameter "id" was sent straight into SQL query without sanitization.