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CVE-2025-4800— MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload

Quick assessment

Affected
StylemixThemes MasterStudy LMS Pro
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin MasterStudy LMS Pro 4.7.0及之前版本存在代码问题漏洞，该漏洞源于文件类型验证不足，可能导致任意文件上传。

CVSS 8.8 · High EPSS 1.04% · P61
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I. Basic Information for CVE-2025-4800

Vulnerability Information
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Vulnerability Title
MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload
Source: CVE Program / CVE List V5
Vulnerability Description
The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to a missing file type validation in the stm_lms_add_assignment_attachment function in all versions up to, and including, 4.7.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server, which may make remote code execution possible.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin MasterStudy LMS Pro 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin MasterStudy LMS Pro 4.7.0及之前版本存在代码问题漏洞，该漏洞源于文件类型验证不足，可能导致任意文件上传。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
StylemixThemes MasterStudy LMS Pro * ~ 4.7.0 -

II. Public POCs for CVE-2025-4800

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III. Intelligence Information for CVE-2025-4800

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Vendor Pages for CVE-2025-4800 (2)

IV. Related Vulnerabilities

Same product: MasterStudy LMS Pro
Same vendor: StylemixThemes
Same weakness: CWE-434

V. Comments for CVE-2025-4800

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