The Tutor LMS plugin for WordPress is vulnerable to time-based SQL Injection via the ‘questionid’ parameter in versions up to, and including, 2.7.0 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 Instructor-level permissions and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference to Arbitrary Course Deletion in versions up to, and including, 2.7.0 via the 'tutorcoursedelete' function due to missing validation on a user controlled key. This can allow authenticated attackers, with Instructor-level permissions and above, to delete any course.

The Tutor LMS plugin for WordPress is vulnerable to unauthorized access of data, modification of data, loss of data due to a missing capability check on multiple functions in all versions up to, and including, 2.7.0. This makes it possible for unauthenticated attackers to add, modify, or delete data.

The Tutor LMS plugin for WordPress is vulnerable to bypass to user registration in versions up to, and including, 2.7.6. This is due to a missing check for the 'userscanregister' option in the 'registerinstructor' function. This makes it possible for unauthenticated attackers to register as the default role on the site, even if registration is disabled.

The Tutor LMS plugin for WordPress is vulnerable to SQL Injection via the ‘ratingfilter’ parameter in all versions up to, and including, 2.7.6 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.8.3. This makes it possible for authenticated attackers, with tutor-level access and above, to view assignments for courses they don't teach which may contain sensitive information.