Provide references for CVE-2021-3818.
Where can I find more information about CVE-2021-3818?
References are available at: https://huntr.dev/bounties/c2bc65af-7b93-4020-886e-8cdaeb0a58ea, https://github.com/getgrav/grav/commit/c51fb1779b83f620c0b6f3548d4a96322b55df07.