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

CVE-2026-4365Published · Updated

Action summary

Affected: ≤4.3.2.8Update to 4.3.3 or newer

All remediation steps
Watch plugin
Severity
Critical9.1
CVSS
9.1
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:H Integrity
High
A:H Availability
High
Weakness
CWE-862 Missing Authorization
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

LearnPress – WordPress LMS Plugin for Create and Sell Online Courses learnpress

  1. Affected≤ 4.3.2.8
  2. Patched in4.3.3

Update to 4.3.3 or newer.

You are affected if you run ≤ 4.3.2.8. Version 4.3.3 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under LearnPress – WordPress LMS Plugin for Create and Sell Online Courses.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 4.3.3, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch LearnPress – WordPress LMS Plugin for Create and Sell Online Courses to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Supakiad S. (m3ez).

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses

All 103
More vulnerabilities in LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
SeverityVulnerabilityCVEPublished
Medium4.3Missing Authorization
≤4.4.12Update to 4.4.13
CVE-2026-52713
Medium5.3Missing Authorization
≤4.4.11Update to 4.4.12
CVE-2026-115599
Medium5.3Missing Authorization
≤4.4.11Update to 4.4.12
CVE-2026-115598
Medium4.3Missing Authorization
≤4.4.11Update to 4.4.12
CVE-2026-115597
Medium4.3Missing Authorization
≤4.4.10Update to 4.4.11
CVE-2026-42690

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Timeline

  1. CVE published

    Severity critical, CVSS 9.1

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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