---
id: CVE-2026-88848
title: >-
  The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify
  that a course a member asks to enrol in is covered by their membership plan,
  nor that the plan identifier submitted with the request is one they actually
  hold, a…
summary: >-
  The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify
  that a course a member asks to enrol in is covered by their membership plan,
  nor that the plan identifier submitted with the request is one they actually
  hold, a…
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-863
product: MasterStudy LMS
affected:
  - masterstudy_lms >= 1.9 < 3.7.50
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T13:25:16.167'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88848'
references:
  - url: 'https://wpscan.com/vulnerability/13258868-aeed-4664-8b38-ffb1f802895a/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T12:36:33.646690Z'
ingestedAt: '2026-09-25T09:05:19.674Z'
epss: 0.00119
epssPercentile: 0.01589
---

## Overview

The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify that a course a member asks to enrol in is covered by their membership plan, nor that the plan identifier submitted with the request is one they actually hold, allowing any member to enrol themselves into restricted paid courses outside their plan and beyond the number of courses it entitles them to.

## Remediation

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