CVE-2023-49438: URL Redirection to Untrusted Site ('Open Redirect')

December 26, 2023 (updated January 14, 2024)

An open redirect vulnerability in the python package Flask-Security-Too <=5.3.2 allows attackers to redirect unsuspecting users to malicious sites via a crafted URL by abusing the ?next parameter on the /login and /register routes.

References

github.com/Flask-Middleware/flask-security
github.com/brandon-t-elliott/CVE-2023-49438
nvd.nist.gov/vuln/detail/CVE-2023-49438

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