Advisory Published

CVE-2021-24740: XSS

First published: Mon Oct 18 2021(Updated: )

The Tutor LMS WordPress plugin before 1.9.9 does not escape some of its settings before outputting them in attributes, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.


Affected SoftwareAffected VersionHow to fix
Themeum Tutor Lms<1.9.9

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Frequently Asked Questions

  • What is CVE-2021-24740?

    CVE-2021-24740 is a vulnerability in the Tutor LMS WordPress plugin before version 1.9.9 that allows high privilege users to perform Cross-Site Scripting attacks.

  • What is the severity of CVE-2021-24740?

    The severity of CVE-2021-24740 is medium with a CVSS score of 4.8.

  • How can CVE-2021-24740 affect my website?

    CVE-2021-24740 can allow high privilege users to perform Cross-Site Scripting attacks on your website, potentially compromising user data.

  • Is there a fix available for CVE-2021-24740?

    Yes, upgrading the Tutor LMS WordPress plugin to version 1.9.9 or higher fixes CVE-2021-24740.

  • Where can I find more information about CVE-2021-24740?

    You can find more information about CVE-2021-24740 at the following reference link:


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