LearnPress <= 4.3.2.8 - Missing Authorization to Unauthenticated Arbitrary Quiz Answer Deletion
| CVE | CVE-2026-4365 |
|---|---|
| CVSS | 9.1 (Critical) |
| Publicly Published | April 13, 2026 |
| Last Updated | June 15, 2026 |
| Researcher |
Supakiad S. (m3ez)
- E-CQURITY (Thailand)
|
Description
The LearnPress plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the `delete_question_answer()` function in all versions up to, and including, 4.3.2.8. The plugin exposes a `wp_rest` nonce in public frontend HTML (`lpData`) to unauthenticated visitors, and uses that nonce as the only security gate for the `lp-load-ajax` AJAX dispatcher. The `delete_question_answer` action has no capability or ownership check. This makes it possible for unauthenticated attackers to delete any quiz answer option by sending a crafted POST request with a publicly available nonce.
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Vulnerability Details for LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
| Software Type | Plugin |
|---|---|
| Software Slug | learnpress (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.3.3, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
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