Provide references for CVE-2021-23393.
Where can I find more information about CVE-2021-23393?
References are available at: https://snyk.io/vuln/SNYK-PYTHON-FLASKUNCHAINED-1293189, https://github.com/briancappello/flask-unchained/commit/71e36b28166f9ffbe0a991f51127f0984f7e6a40.