What’s Vulnerable › Vulnerabilities

CVE-2022-24857: Multi factor authentication bypass in django-mfa3

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-15 · updated 2026-06-17
• Weakness: CWE-287

Description

django-mfa3 is a library that implements multi factor authentication for the django web framework. It achieves this by modifying the regular login view. Django however has a second login view for its admin area. This second login view was not modified, so the multi factor authentication can be bypassed. Users are affected if they have activated both django-mfa3 (< 0.5.0) and django.contrib.admin and have not taken any other measures to prevent users from accessing the admin login view. The issue has been fixed in django-mfa3 0.5.0. It is possible to work around the issue by overwriting the admin login route, e.g. by adding the following URL definition *before* the admin routes: url('admin/login/', lambda request: redirect(settings.LOGIN_URL)

Affected products

• xi django-mfa3: before 0.5.0 — fixed in 0.5.0

How to fix

Upgrade to a fixed version: xi django-mfa3 0.5.0. Check the vendor advisory for mitigations.

References

• https://github.com/xi/django-mfa3/blob/main/CHANGES.md#050-2022-04-15
• https://github.com/xi/django-mfa3/commit/32f656e22df120b84bdf010e014bb19bd97971de
• https://github.com/xi/django-mfa3/security/advisories/GHSA-3r7g-wrpr-j5g4
• https://security.netapp.com/advisory/ntap-20220609-0003/
• https://github.com/xi/django-mfa3/blob/main/CHANGES.md#050-2022-04-15
• https://github.com/xi/django-mfa3/commit/32f656e22df120b84bdf010e014bb19bd97971de
• https://github.com/xi/django-mfa3/security/advisories/GHSA-3r7g-wrpr-j5g4
• https://security.netapp.com/advisory/ntap-20220609-0003/

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