LearnPress <= 4.4.1 - Missing Authorization to Unauthenticated Sensitive Information Exposure via /lp/v1/users/check-answer and /start-quiz REST Endpoints

2026-07-16 15:14
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Vulnerability Overview

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.4.1 via the check_answer. This makes it possible for unauthenticated attackers to extract the correct-answer markers, full option lists, explanations, and question content for any quiz question on the site — including questions belonging to paid courses the attacker is not enrolled in.

Technical Analysis

REMEDIATION: Update to version 4.4.2, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C

LearnPress <= 4.4.1 - Missing Authorization to Unauthenticated Sensitive Information Exposure via /lp/v1/users/check-answer and /start-quiz REST Endpoints (CVE-2026-13765)