---
id: CVE-2026-81338
title: >-
  The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not
  properly sanitise and restrict HTML in user-submitted content before storing
  it and rendering it to other users, allowing users with subscriber-level
  accounts …
summary: >-
  The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not
  properly sanitise and restrict HTML in user-submitted content before storing
  it and rendering it to other users, allowing users with subscriber-level
  accounts …
severity: medium
cvss: 4.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-345
product: MasterStudy LMS WordPress Plugin
affected:
  - masterstudy_lms_wordpress_plugin < 3.7.50
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:13:31.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-81338'
references:
  - url: 'https://wpscan.com/vulnerability/e8494c71-fb0f-4ab9-a8b7-8db3745a2d9b/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00093
epssPercentile: 0.00507
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T10:46:48.963456Z'
ingestedAt: '2026-09-23T06:17:57.886Z'
---

## Overview

The MasterStudy LMS WordPress Plugin  WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.

## Remediation

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