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.x prior to 3.11.10, Moodle 3.10.4, and Moodle 3.9.7.
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-36568
- https://blog.hackingforce.com.br/en/cve-2021-36568/
- https://bugzilla.redhat.com/show_bug.cgi?id=2126857
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ERQ3NHVOK4ZXT4MS4LBQ2ZJHTON3LIMW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PRI4ETMQ4DJR3TZUOOGPBQ32RBD5LNGC/
- https://github.com/advisories/GHSA-fm6m-fg23-67jq