---
id: CVE-2026-112328
title: Sensei LMS 4.26.4 Broken Access Control via add_new_module_term AJAX
summary: >-
  The Sensei LMS WordPress plugin before 4.26.4 contains a broken access control
  vulnerability in the add_new_module_term AJAX handler that allows
  authenticated Teacher-role attackers to assign module taxonomy terms to
  arbitrary courses by…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: Automattic
product: Sensei LMS
affected:
  - sensei_lms < 4.26.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-19T18:28:57.693553Z'
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T18:29:06.036Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112328'
references:
  - url: 'https://senseilms.com/release-notes/'
    label: Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/sensei-lms-broken-access-control-via-add-new-module-term-ajax
    label: >-
      VulnCheck Advisory: Sensei LMS 4.26.4 Broken Access Control via
      add_new_module_term AJAX
tags:
  - cve.org
ingestedAt: '2026-10-19T15:31:18.962Z'
---

## Overview

The Sensei LMS WordPress plugin before 4.26.4 contains a broken access control vulnerability in the add_new_module_term AJAX handler that allows authenticated Teacher-role attackers to assign module taxonomy terms to arbitrary courses by supplying a crafted course_id, since the handler validates only a generic nonce and checks manage_options solely for slug prefixing rather than verifying course edit permissions. Attackers can reuse a nonce obtained from their own course metabox to call wp_set_object_terms against courses owned by other teachers or administrators, enabling unauthorized modification of course content they do not own.

## Affected

- `sensei_lms < 4.26.4`

## Remediation

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