Provide references for CVE-2021-3663.
Where can I find more information about CVE-2021-3663?
References are available at: https://huntr.dev/bounties/497bdf6d-7dba-49c3-8011-1c64dfbb3380, https://github.com/firefly-iii/firefly-iii/commit/afc9f4b7ebc8a240c85864a6e1abda62bfeefae8.