---
id: CVE-2026-103882
title: >-
  Acadlix LMS <= 1.1.9 - Unauthenticated Arbitrary File Deletion via
  'delete_file_data.file_path' Parameter
summary: >-
  The Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress
  plugin for WordPress is vulnerable to arbitrary file deletion due to
  insufficient file path validation in the post_delete_assessment_file_by_id
  function in all ve…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-22
vendor: acadlix
product: 'Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress'
affected:
  - lms_ai_quiz_maker_online_exam_course_plugin_for_wordpress <= 1.1.9
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-05T15:27:55.095454Z'
published: '2026-10-31'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T15:28:06.600Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-103882'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/b54682f6-914e-4c16-b8fb-63b5dcb14933?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/acadlix/tags/1.1.8/includes/Common/REST/Front/FrontQuizController.php#L692
  - url: >-
      https://plugins.trac.wordpress.org/browser/acadlix/tags/1.1.8/includes/Common/REST/Front/FrontQuizController.php#L680
  - url: >-
      https://plugins.trac.wordpress.org/browser/acadlix/tags/1.1.8/includes/Common/REST/Front/FrontQuizController.php#L807
  - url: >-
      https://plugins.trac.wordpress.org/browser/acadlix/tags/1.1.8/includes/Common/Assets/Manager.php#L570
tags:
  - cve.org
epss: 0.00787
epssPercentile: 0.56383
ingestedAt: '2026-11-05T21:36:00.902Z'
---

## Overview

The Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the post_delete_assessment_file_by_id function in all versions up to, and including, 1.1.9. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The route's permission callback only verifies a generic wp_rest nonce that the plugin itself emits inside the public acadlixOptions JavaScript object on every frontend page, effectively reducing the authentication requirement to unauthenticated.

## Affected

- `lms_ai_quiz_maker_online_exam_course_plugin_for_wordpress <= 1.1.9`

## Remediation

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