---
id: CVE-2026-12230
title: >-
  The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
  plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'layout_custom_css' parameter in all versions up to, and including, 4.3.9.1
  due to insuffi…
summary: >-
  The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
  plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the
  'layout_custom_css' parameter in all versions up to, and including, 4.3.9.1
  due to insuffi…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: thimpress
product: LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
affected:
  - >-
    learnpress_wordpress_lms_plugin_for_create_and_sell_online_courses <=
    4.3.9.1
published: '2026-09-08'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T17:17:15.610'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-12230'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.4/inc/ExternalPlugin/Elementor/Widgets/Instructor/ListInstructorsElementor.php#L45
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.4/inc/ExternalPlugin/Elementor/Widgets/Instructor/ListInstructorsElementor.php#L82
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.0/inc/ExternalPlugin/Elementor/Widgets/Instructor/ListInstructorsElementor.php
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/9f662888-c388-4191-bda9-b8a22d63cb3f?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-09T16:00:13.610803Z'
epss: 0.00198
epssPercentile: 0.08674
ingestedAt: '2026-09-08T15:33:26.983Z'
---

## Overview

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'layout_custom_css' parameter in all versions up to, and including, 4.3.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.