Provide references for CVE-2021-38721.
Where can I find more information about CVE-2021-38721?
References are available at: https://github.com/daylightstudio/FUEL-CMS/issues/584, https://github.com/daylightstudio/FUEL-CMS/commit/6164cd794674d4d74da39f8b535ff588ab006e33.