CVE-2023-49438: Open redirect vulnerability in Flask-Security-Too

CVE-2023-49438 · Severity: low · CVSS 3.1 · Published 2023-12-26

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.

Technologies: Flask-Security-Too (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2023-49438 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-49438 being exploited in the wild.
How severe is CVE-2023-49438?
Low severity, with a CVSS score of 3.1, published 26 December 2023.
Which products and versions are affected?
Flask-Security-Too (PyPI) ECOSYSTEM:introduced=0,fixed=5.3.3.
Is there a fix for CVE-2023-49438?
Yes. Flask-Security-Too (PyPI): upgrade to 5.3.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-49438?
Check whether you run Flask-Security-Too (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Flask-Security-Too (PyPI): upgrade to 5.3.3 or later
    pip install "Flask-Security-Too>=5.3.3"

Affected products

  • Flask-Security-Too (PyPI) ECOSYSTEM:introduced=0,fixed=5.3.3

Identifiers

  • CVE-2023-49438
  • GHSA-672h-6x89-76m5
  • PYSEC-2023-248

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