CVE-2026-42702

Deferred Deferred - Pending Action

Unauthenticated XSS in Tutor LMS <= 4.1.0

Publication date: 2026-10-10

Last updated on: 2026-10-13

Assigner: Patchstack

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Themeum Tutor LMS tutor allows Reflected XSS.This issue affects Tutor LMS: from n/a through 4.1.0.

CVSS Scores

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Meta Information

Published

2026-10-10

Last Modified

2026-10-13

Generated

2026-10-19

AI Q&A

2026-10-10

EPSS Evaluated

2026-10-18

NVD

CVE-2026-42702

EUVD

EUVD-2026-96440

Affected Vendors & Products

Vendor	Product	Version / Range
Themeum	Tutor	LMS n/a

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability affecting Tutor LMS plugin versions 4.1.0 and below. It allows attackers to inject malicious scripts into a website, potentially stealing visitor data or hijacking user accounts. Exploitation requires a user to interact with a malicious link or form.

Detection Guidance

To detect this XSS vulnerability in Tutor LMS <= 4.1.0, check the installed plugin version via WordPress admin panel or database. Look for suspicious user inputs or scripts in web forms, URLs, or database entries. Use security tools like Wordfence, Sucuri, or Patchstack to scan for known vulnerabilities.

Impact Analysis

Attackers could steal sensitive visitor data like cookies or session tokens, hijack user accounts, or perform actions on behalf of users. This could lead to unauthorized access, data breaches, or defacement of the website.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR and HIPAA requirements for protecting user data. Organizations could face fines or legal consequences if exploited.

Mitigation Strategies

Immediately update Tutor LMS to version 4.1.1 or later. Enable auto-updates for plugins to prevent future vulnerabilities. Apply Patchstack's mitigation rule if available. Monitor for unusual activity or unauthorized access.

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