In Moodle, in some circumstances, email notifications of messages could have the link back to the original message hidden by HTML, which may pose a phishing risk.
{ "binaries": [ { "binary_name": "moodle", "binary_version": "3.0.3+dfsg-0ubuntu1" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36403.json"