CVE-2026-13443
Received Received - Intake

Stored XSS in Tutor LMS WordPress Plugin via Lesson Attachment Title

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: Wordfence

Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Lesson Attachment Title in all versions up to, and including, 3.9.13 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-13443
EUVD
EUVD-2026-40893

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tutor_lms tutor_lms to 3.9.13 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

The Tutor LMS plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the Lesson Attachment Title feature. This occurs because the plugin does not properly sanitize or escape input and output data. As a result, authenticated users with author-level access or higher can inject malicious scripts into pages. These scripts execute whenever any user views the affected page.

Impact Analysis

This vulnerability allows attackers with author-level access to inject arbitrary web scripts that execute in the context of other users viewing the affected pages. This can lead to theft of user credentials, session hijacking, defacement, or other malicious actions performed on behalf of the victim user.

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