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
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | thimpress |
| Product | learnpress – wordpress lms plugin for create and sell online courses |
| Published | Jul 17, 2026 |
Stay Ahead of the Next One
Get instant alerts for thimpress learnpress – wordpress lms plugin for create and sell online courses
Be the first to know when new high vulnerabilities affecting thimpress learnpress – wordpress lms plugin for create and sell online courses are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
thimpress / LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
0 ≤ 4.4.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ee3bbf20-43fd-4977-b0ba-b81e7a3810d0?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L434 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L80 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L54 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/course/class-lp-course-no-required-enroll.php#L145 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L181 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.1/inc/lp-template-functions.php#L1422 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L434 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L80 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L54 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/course/class-lp-course-no-required-enroll.php#L145 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/rest-api/v1/frontend/class-lp-rest-users-controller.php#L181 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.6/inc/lp-template-functions.php#L1422 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?reponame=&old=3603546%40learnpress&new=3603546%40learnpress
Credits
이성민