LearnPress < 4.3.3 - Unauthenticated Arbitrary Quiz Answer Deletion

Description

The plugin is vulnerable to unauthorized data deletion due to a missing capability check on the `delete_question_answer()` function. The plugin exposes a `wp_rest` nonce in public frontend HTML (`lpData`) to unauthenticated visitors, and uses that nonce as the only security gate for the `lp-load-ajax` AJAX dispatcher. The `delete_question_answer` action has no capability or ownership check. This makes it possible for unauthenticated attackers to delete any quiz answer option by sending a crafted POST request with a publicly available nonce.