What’s Vulnerable › Vulnerabilities
CVE-2026-13765: LearnPress <= 4.4.1 - Missing Authorization to Unauthenticated Sensitive Information Exposure via /lp/v1/users/check-answer and /start-quiz REST Endpoints
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-17 · updated 2026-07-17
- Weakness: CWE-862
Description
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.
Affected products
References
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/course/class-lp-course-no-required-enroll.php#L145
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/lp-template-functions.php#L1422
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L181
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L434
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L54
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L80
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/course/class-lp-course-no-required-enroll.php#L145
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/lp-template-functions.php#L1422
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L181
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L434
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L54
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L80
Get alerted when CVE-2026-13765 or the next vulnerability affects your stack