Provide references for CVE-2021-22888.
Where can I find more information about CVE-2021-22888?
References are available at: https://hackerone.com/reports/1097979, https://www.revive-adserver.com/security/revive-sa-2021-003/, https://github.com/revive-adserver/revive-adserver/commit/f472d890.