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CVE-2026-103882— Acadlix LMS <= 1.1.9 - Unauthenticated Arbitrary File Deletion via 'delete_file_data.file_path' Parameter

Quick assessment

Affected
acadlix Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件"Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin"在所有 1.1.9 及之前的版本中，由于 函数中文件路径验证不足，存在任意文件删除漏洞。该漏洞允许拥有订阅者（Subscriber）及以上权限的已认证攻击者删除服务器上的任意文件；若删除关键文件（如 ），则极易导致远程代码执行（RCE）。此外，该路由的权限回调仅验证了一个通用的 令牌，而该令牌由插件自身在每个前端页面的公共 JavaScript 对象 中公开，从而实质上将认证要

CVSS 9.1 · Critical EPSS 0.79% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
acadlix Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress ≤ 1.1.9 affected
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I. Basic Information for CVE-2026-103882

Vulnerability Information
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Vulnerability Title
Acadlix LMS <= 1.1.9 - Unauthenticated Arbitrary File Deletion via 'delete_file_data.file_path' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
acadlix Acadlix LMS – AI Quiz Maker, Online Exam & Course Plugin for WordPress 0 ~ 1.1.9 -

II. Public POCs for CVE-2026-103882

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III. Intelligence Information for CVE-2026-103882

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Other References for CVE-2026-103882 (5)

IV. Related Vulnerabilities

Same weakness: CWE-22