CVE-2021-36568: XSS

Published Sep 13, 2022

Updated

In certain Moodle products after creating a course, it is possible to add in a arbitrary "Topic" a resource, in this case a "Database" with the type "Text" where its values "Field name" and "Field description" are vulnerable to Cross Site Scripting Stored(XSS). This affects Moodle 3.11 and Moodle 3.10.4 and Moodle 3.9.7.

Affected Software

5 affected components

Moodle moodle=3.9.7

Moodle moodle=3.10.4

Moodle moodle=3.11.0

Fedoraproject Fedora=35

Fedoraproject Fedora=36

Event History

Sep 13, 2022

CVE Published

via MITRE·09:06 PM

Data Sourced

via MITRE·09:06 PM

Description

Frequently Asked Questions

What is CVE-2021-36568?

CVE-2021-36568 is a vulnerability in certain Moodle products that allows for Cross Site Scripting (XSS) attacks.

Which versions of Moodle are affected by CVE-2021-36568?

Moodle versions 3.9.7, 3.10.4, and 3.11.0 are affected by CVE-2021-36568.

What is the severity of CVE-2021-36568?

CVE-2021-36568 has a severity rating of medium with a score of 5.4.

How can I exploit the vulnerability in CVE-2021-36568?

As a user with access to create a course in Moodle, you can add a resource in an arbitrary topic, specifically a database with the type 'Text', to exploit the Cross Site Scripting (XSS) vulnerability.

How can I mitigate the vulnerability in CVE-2021-36568?

To mitigate CVE-2021-36568, update your Moodle installation to a version that is not affected by the vulnerability.