CVE-2026-89081

Received Received - Intake

Reflected XSS in Tutor LMS WordPress Plugin

Publication date: 2026-09-19

Last updated on: 2026-09-19

Assigner: Wordfence

Description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search' parameter in all versions up to, and including, 4.0.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-19

Last Modified

2026-09-19

Generated

2026-09-20

AI Q&A

2026-09-20

EPSS Evaluated

N/A

NVD

CVE-2026-89081

Affected Vendors & Products

Vendor	Product	Version / Range
tutor_lms	tutor_lms	to 4.0.8 (inc)

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 vulnerability is a Reflected Cross-Site Scripting (XSS) issue in the Tutor LMS WordPress plugin. It exists in versions up to 4.0.8 due to insufficient input sanitization and output escaping in the 'search' parameter. Attackers can inject malicious scripts that execute when a user clicks a crafted link.

Detection Guidance

This vulnerability can be detected by checking if the Tutor LMS plugin version is 4.0.8 or lower. Inspect the plugin files for unsanitized input handling in the 'search' parameter. No specific commands are provided in the context.

Impact Analysis

Unauthenticated attackers could trick users into clicking a link, leading to execution of arbitrary scripts in their browser. This may allow theft of session cookies, account takeover, or defacement of web pages.

Compliance Impact

This XSS flaw could compromise user data confidentiality, potentially violating GDPR (data protection) and HIPAA (health data privacy) by enabling unauthorized access to sensitive information.

Mitigation Strategies

Immediately update the Tutor LMS plugin to the latest version beyond 4.0.8. If an update is not available, consider disabling the plugin until a patch is released. Monitor for suspicious activity related to XSS attacks.

Hi! I’m here to help you understand CVE-2026-89081. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70