Description
While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a flaw in logic implementation allows an authenticated user to reset it's bracket and then pick a new one, joining another team while a competition is already ongoing. This issue impacts releases from 3.7.0 up to 3.7.4 and was addressed by pull request 2636 https://github.com/CTFd/CTFd/pull/2636 included in 3.7.5 release.
References (6)
Scores
CVSS v4
5.3
EPSS
0.0658
EPSS Percentile
91.2%
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-837
Status
published
Products (1)
CTFd/CTFd
3.7.0 - 3.7.4
Published
Jan 02, 2025
Tracked Since
Feb 18, 2026