CVE-2023-35090 MEDIUM

CVE-2023-35090: WordPress MasterStudy LMS Plugin <= 3.0.8 is vulnerable to Cross Site Scripting (XSS)

Vendor Stylemixthemes
Product MasterStudy LMS WordPress Plugin – for Online Courses and Education
Weakness CWE-79 · XSS
Published June 22, 2023
Last update April 28, 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

Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in StylemixThemes MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin <= 3.0.7 versions.

Explanation of Vulnerability in Simple Terms

02Summary

The MasterStudy LMS WordPress plugin through version 3.0.7 contains a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other users, including administrators. The vulnerability requires user interaction to trigger. Affected sites should update to a version newer than 3.0.7.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers, potentially stealing session tokens or performing actions as those users.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other site visitors; administrators are at risk of account compromise or unauthorized changes.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account on the site and the victim must visit a page containing the injected payload.

Key dates

06Disclosure timeline

June 22, 2023 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-65550 WordPress Tabs plugin <= 2.5 - Cross Site Scripting (XSS) vulnerability CVE-2026-18344 Responsive Thumbnail Slider < 1.1.53 - Reflected Cross-Site Scripting via 'id' Parameter CVE-2026-65438 WordPress Message Filter for Contact Form 7 plugin <= 1.6.3.9 - Cross Site Scripting (XSS) vulnerability CVE-2026-15425 Yoast SEO <= 28.0 - Authenticated (Author+) Stored Cross-Site Scripting via Post Slug (post_name) CVE-2026-12231 Exclusive Addons for Elementor <= 2.7.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'exad_infobox_image'