LearnPress <= 4.4.1 - Missing Authorization to Unauthenticated Sensitive Information Exposure via /lp/v1/users/check-answer and /start-quiz REST Endpoints
Strategic Overview
- Status
- Patched in 4.4.2
- Affected Version
<= 4.4.1- CVSS
- 7.5High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2026-13765
At a glance
CVE-2026-13765 is a high-severity Missing Authorization vulnerability in the LearnPress WordPress plugin, affecting versions <= 4.4.1. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 4.4.2; sites on affected versions should update now. Disclosed July 2026, reported by 이성민.
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
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-862: Missing Authorization
Reaching this weakness in LearnPress <= 4.4.1 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For LearnPress the fix is 4.4.2: builds <= 4.4.1 are affected, anything from 4.4.2 onward is not.
Remediation
Update to version 4.4.2, or a newer patched version
How does WordSec protect against this?
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: LearnPress 4.4.2 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
- 10.0CVE-2024-8529: LearnPress – WordPress LMS Plugin SQL Injection
CVE-2024-8529 - 10.0CVE-2024-8522: LearnPress – WordPress LMS Plugin SQL Injection
CVE-2024-8522 - 9.8CVE-2024-4434: LearnPress – WordPress LMS Time-Based SQL Injection
CVE-2024-4434 - 9.8CVE-2023-6567: LearnPress <= 4.2.5.7 SQL Injection
CVE-2023-6567 - 9.8CVE-2022-45808: LearnPress <= 4.1.7.3.2 SQL Injection
CVE-2022-45808 - 9.8CVE-2022-47615: LearnPress <= 4.1.7.3.2 Local File Inclusion
CVE-2022-47615 - 9.8CVE-2022-3360: LearnPress <= 4.1.7.1 PHP Object Injection
CVE-2022-3360 - 9.8CVE-2021-24951: LearnPress <= 4.1.3 SQL Injection
CVE-2021-24951
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