CVE-2026-57330 MEDIUM

CVE-2026-57330: WordPress MasterStudy LMS plugin <= 3.7.27 - Cross Site Scripting (XSS) vulnerability

Vendor Stylemix
Product MasterStudy LMS
Weakness CWE-79 · XSS
Published June 29, 2026
Last update June 29, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Subscriber Cross Site Scripting (XSS) in MasterStudy LMS <= 3.7.27 versions.

Explanation of Vulnerability in Simple Terms

02Summary

MasterStudy LMS versions up to 3.7.27 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers when they view affected content. The vulnerability requires user interaction and can affect the confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers and steal data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Authenticated users can compromise other users' sessions, steal credentials, or deface content visible to site visitors.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account and the victim must view a page containing the injected script.

Key dates

06Disclosure timeline

June 29, 2026 CVE published