CVE-2024-11716 Information

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.

Reference

https://blog.ctfd.io/ctfd-3-7-5/ https://cert.pl/en/posts/2025/01/CVE-2024-11716 https://ctfd.io/ https://github.com/CTFd/CTFd/pull/2636 https://seclists.org/fulldisclosure/2024/Dec/21 https://seclists.org/fulldisclosure/2024/Dec/21