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CVE-2026-4365

LearnPress <= 4.3.2.8 - Missing Authorization to Unauthenticated Arbitrary Quiz Answer Deletion

Published: Apr 14, 2026Updated: Apr 22, 2026 Sources: CVE List NVDCWE-862
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.9%
Top 46.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-862

Affected Products

LearnPress – WordPress LMS Plugin for Create and Sell Online CoursesthimpressWeb & CMS Plugins
thimpresscommercialWeb & CMS Pluginsaka thimpress

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
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References

https://www.wordfence.com/threat-intel/vulnerabilities/id/021bd566-1663-46ba-a616-ab554b691cbb?source=cve
wordfence.com
https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/Ajax/EditQuestionAjax.php#L285
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/Ajax/AbstractAjax.php#L33
plugins.trac.wordpress.org
and 1 more references View all →

Timeline

Published
Apr 14, 2026
Last Updated
Apr 22, 2026

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