Provide references for CVE-2021-3920.
Where can I find more information about CVE-2021-3920?
References are available at: https://huntr.dev/bounties/ab564760-90c6-4e1d-80c2-852f45034cd1, https://github.com/getgrav/grav-plugin-admin/commit/6463135bf046d8131189c163158cd5db8f7a9675.