CVE-2024-11716

MEDIUM

CTFd 3.7.0-3.7.4 - Authenticated Team Assignment Bypass via Bracket Reset

Title source: llm
STIX 2.1

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)

Core 6
Core References
Various Sources third-party-advisory
https://cert.pl/en/posts/2025/01/CVE-2024-11716
Various Sources product
https://ctfd.io/
Various Sources vendor-advisory
https://blog.ctfd.io/ctfd-3-7-5/
Mailing List mailing-list exploit
https://seclists.org/fulldisclosure/2024/Dec/21

Scores

CVSS v4 5.3
EPSS 0.1166
EPSS Percentile 95.6%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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