Provide references for CVE-2021-21358.
Where can I find more information about CVE-2021-21358?
References are available at: https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x79j-wgqv-g8h2, https://packagist.org/packages/typo3/cms-form, https://typo3.org/security/advisory/typo3-core-sa-2021-004.