Unauthorized Data Deletion in LearnPress Plugin for WordPress
CVE-2026-4365

9.1CRITICAL

Key Information:

Vendor

WordPress
Status
Learnpress – WordPress Lms Plugin For Create And Sell Online Courses
Vendor
CVE Published:
14 April 2026

What is CVE-2026-4365?

The LearnPress plugin for WordPress has a vulnerability that allows unauthorized users to delete quiz answer options. This is due to the absence of a necessary capability check on the 'delete_question_answer()' function, affecting all versions through 4.3.2.8. The plugin inadvertently exposes a 'wp_rest' nonce in publicly accessible frontend HTML, which serves as the only barrier to the 'lp-load-ajax' AJAX dispatcher. Unsanctioned attackers can exploit this flaw by sending specially crafted POST requests using the publicly available nonce, leading to potential data loss and manipulation.

Affected Version(s)

LearnPress – WordPress LMS Plugin for Create and Sell Online Courses 0 <= 4.3.2.8

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/learnpress/tru...
https://plugins.trac.wordpress.org/browser/learnpress/tru...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supakiad S.
.