Provide references for CVE-2021-21320.
Where can I find more information about CVE-2021-21320?
References are available at: https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-52mq-6jcv-j79x, https://github.com/matrix-org/matrix-react-sdk/pull/5657, https://github.com/matrix-org/matrix-react-sdk/commit/b386f0c73b95ecbb6ea7f8f79c6ff5171a8dedd1, https://www.npmjs.com/package/matrix-react-sdk.