CVE-2026-8502 Details
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, 4.3.6 via the 'return_type' parameter. This makes it possible for unauthenticated attackers to extract sensitive data including the plaintext post_password of password-protected courses and the full post_content, post_author, and post_name of unpublished draft, private, and pending courses via the unrestricted SELECT * fallback query. Exploitation requires supplying both c_status=all (to bypass the publish-only post_status WHERE clause) and return_type=json (to prevent the safe DISTINCT(ID) AS ID field override) in a single unauthenticated request to the /wp-json/lp/v1/courses/archive-course endpoint.
A vulnerability allowing sensitive information exposure exists in the LearnPress WordPress LMS Plugin, specifically in versions through 4.3.6. The issue arises from the 'return_type' parameter, which can be exploited by unauthenticated attackers to retrieve sensitive data. This includes the plaintext post_password of password-protected courses, as well as the full post_content, post_author, and post_name of unpublished draft, private, and pending courses. The vulnerability is exploited by sending an unauthenticated request to the '/wp-json/lp/v1/courses/archive-course' endpoint, including both 'c_status=all' to bypass the default post status filter and 'return_type=json' to avoid a safety feature that limits the data returned.
Users are advised to update the LearnPress WordPress LMS Plugin to version 4.3.7 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 6, 2026CISA-ADP
Assessed Jun 6, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| LearnPress | <= 4.3.6 (semver) |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 6, 2026 | New CVE Received | [email protected] |