CVE-2026-119478— WordPress MasterStudy LMS plugin <= 3.7.56 - Content Injection vulnerability

Quick assessment

Affected

StylemixThemes MasterStudy LMS

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.

StylemixThemes MasterStudy LMS（masterstudy-lms-learning-management-system）存在网页中脚本相关 HTML 标签未正确中和（基础跨站脚本攻击，Basic XSS）漏洞，可导致代码注入。该问题影响 MasterStudy LMS 从未知版本至 3.7.56 的所有版本。

CVSS 4.3 · Medium Updated Nov 07, 2026

Possible ATT&CK Techniques 2 AI

T1059.007 · JavaScript T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

WordPress MasterStudy LMS plugin <= 3.7.56 - Content Injection vulnerability

Source: CVE Program / CVE List V5

Vulnerability Description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in StylemixThemes MasterStudy LMS masterstudy-lms-learning-management-system allows Code Injection.This issue affects MasterStudy LMS: from n/a through 3.7.56.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
StylemixThemes	MasterStudy LMS	0 ~ 3.7.56	-

II. Public POCs for CVE-2026-119478

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-119478

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Other References for CVE-2026-119478 (1)

https://patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-system/vulnerability/wordpress-masterstudy-lms-plugin-3-7-56-content-injection-vulnerability?_s_id=cve vdb-entry

https://www.cve.org/CVERecord?id=CVE-2026-119478

Same Patch Batch · StylemixThemes · 2026-11-07 · 3 CVEs total

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CVE-2026-123467	4.3 MEDIUM	WordPress Motors plugin <= 1.4.128 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: MasterStudy LMS

Same vendor: StylemixThemes

Same weakness: CWE-80