The LearnPress WordPress plugin before 4.4.7 does not restrict the correctness flags it returns when a quiz answer is checked, allowing unauthenticated attackers to obtain the correct answer to every option of a question, along with the instructor's explanation, on courses configured to be taken without enrolling.

The LearnPress WordPress plugin before 4.4.7 does not check the user's capabilities in one of its administrative course tools, allowing unauthenticated attackers to list every enrolled student's display name and user identifier against the course they are enrolled on, and to recover their email addresses through the same handler's search filter.

The LearnPress WordPress plugin before 4.4.7 does not check the user's capabilities in one of its administrative template handlers, allowing unauthenticated attackers to retrieve the text, identifier and type of every published quiz question on the site, along with a keyword search over them, which is content the LearnPress WordPress plugin before 4.4.7 otherwise keeps non-public.

The LearnPress WordPress plugin before 4.0.3 does not perform any authorization check on one of its REST endpoints in all versions up to, and including, 4.0.2, allowing unauthenticated attackers to disclose the payment status of arbitrary orders by enumerating order identifiers.