Provide references for CVE-2021-23401.
Where can I find more information about CVE-2021-23401?
References are available at: https://snyk.io/vuln/SNYK-PYTHON-FLASKUSER-1293188, https://github.com/lingthio/Flask-User, https://github.com/lingthio/Flask-User/blob/master/flask_user/user_manager__utils.py.