Provide references for CVE-2021-3977.
Where can I find more information about CVE-2021-3977?
References are available at: https://huntr.dev/bounties/99c4ed09-b66f-474a-bd74-eeccf9339fde, https://github.com/invoiceninja/invoiceninja/commit/1186eaa82375692d01d5ef3369c5b7bc7315b55f.