Description
mfa/FIDO2.py in django-mfa2 before 2.5.1 and 2.6.x before 2.6.1 allows a replay attack that could be used to register another device for a user. The device registration challenge is not invalidated after usage.
References (3)
Core 3
Core References
Exploit, Third Party Advisory
https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58
Release Notes, Third Party Advisory
https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release
Release Notes, Third Party Advisory
https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release
Scores
CVSS v3
7.5
EPSS
0.0100
EPSS Percentile
58.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-294
Status
published
Products (3)
django-mfa2_project/django-mfa2
< 2.5.1
pypi/django-mfa2
0 - 2.5.1PyPI
pypi/django-mfa2
2.6.0 - 2.6.1PyPI
Published
Oct 11, 2022
Tracked Since
Feb 18, 2026