CVE-2026-13765
Received Received - Intake

Sensitive Information Exposure in LearnPress WordPress LMS Plugin

Publication date: 2026-07-17

Last updated on: 2026-07-17

Assigner: Wordfence

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-17
Last Modified
2026-07-17
Generated
2026-07-17
AI Q&A
2026-07-17
EPSS Evaluated
N/A
NVD
CVE-2026-13765
EUVD
EUVD-2026-45137

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
thimpress learnpress to 4.4.1 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in the LearnPress WordPress plugin allows unauthenticated attackers to access sensitive quiz information. It exposes correct answers, full option lists, explanations, and question content from any quiz on the site, even for paid courses the attacker is not enrolled in.

Detection Guidance

To detect this vulnerability, inspect network traffic for unauthorized requests to the check_answer endpoint in LearnPress. Look for exposed quiz data, including answers and explanations. Use tools like curl to test endpoints manually: curl -X GET 'https://example.com/wp-json/learnpress/v1/check_answer?question_id=123' and check for sensitive data leaks.

Impact Analysis

Attackers could steal quiz content, answers, and explanations, compromising course materials. This could lead to unauthorized access to paid content, intellectual property theft, or cheating on assessments. The exposure of explanations may also reveal teaching strategies or sensitive information.

Compliance Impact

This vulnerability may violate data protection regulations like GDPR or HIPAA if it exposes personally identifiable information or sensitive educational data. Organizations could face compliance violations, legal penalties, or reputational damage due to unauthorized data exposure.

Mitigation Strategies

Immediately update LearnPress to the latest version beyond 4.4.1. If an update is unavailable, disable the check_answer endpoint via server rules or a firewall. Restrict access to sensitive quiz data by implementing authentication for API endpoints. Monitor logs for suspicious requests targeting LearnPress endpoints.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-13765. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart