CVE-2024-45399: Indico has a Cross-Site-Scripting during account creation

CVE-2024-45399 · Severity: low · CVSS 3.1 · Published 2024-09-04

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In Indico prior to version 3.3.4, corresponding to Flask-Multipass prior to version 0.5.5, there is a Cross-Site-Scripting vulnerability during account creation when redirecting to the `next` URL. Exploitation requires initiating the account creation process with a maliciously crafted link, and then finalizing the signup process. Because of this, it can only target newly created (and thus unprivileged) Indico users. Indico 3.3.4 upgrades the dependency on Flask-Multipass to version 0.5.5, which fixes the issue. Those who build the Indico package themselves and cannot upgrade can update the `flask-multipass` dependency to `>=0.5.5` which fixes the vulnerability. Otherwise one could configure one's web server to disallow requests containing a query string with a `next` parameter that starts with `javascript:`.

Technologies: indico (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2024-45399 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-45399 being exploited in the wild.
How severe is CVE-2024-45399?
Low severity, with a CVSS score of 3.1, published 4 September 2024.
Which products and versions are affected?
indico (PyPI) ECOSYSTEM:introduced=0,fixed=3.3.4, GIT:introduced=0,fixed=0bdcf656d469e5f675cb56fd644d82fea3a97c2a|GIT:introduced=0,fixed=7dcb573837b9fd09d95f74d1baeae225b164cc8f|ECOSYSTEM:introduced=0,fixed=3.3.4.
Is there a fix for CVE-2024-45399?
Yes. indico (PyPI): upgrade to 3.3.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-45399?
Check whether you run indico (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

  • indico (PyPI): upgrade to 3.3.4 or later
    pip install "indico>=3.3.4"

Affected products

  • indico (PyPI) ECOSYSTEM:introduced=0,fixed=3.3.4, GIT:introduced=0,fixed=0bdcf656d469e5f675cb56fd644d82fea3a97c2a|GIT:introduced=0,fixed=7dcb573837b9fd09d95f74d1baeae225b164cc8f|ECOSYSTEM:introduced=0,fixed=3.3.4

Identifiers

  • CVE-2024-45399
  • GHSA-rrqf-w74j-24ff
  • PYSEC-2024-90

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