Provide references for CVE-2021-39225.
Where can I find more information about CVE-2021-39225?
References are available at: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2x96-38qg-3m72, https://github.com/nextcloud/deck/pull/3316, https://hackerone.com/reports/1331728.