While assignment of a user to a team (bracket) in CTFd should be possible only once, at…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
No affected products listed by the sources yet.
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
CTFd — blog.ctfd.io/ctfd-3-7-5
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2024-10863 Tokens in CTFd used for account activation and password resetting can be used…Priority MEDIUM 61
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11716
- 2026-10-03 Alias added: GHSA-7wpf-4jwj-r2v3
References
More CTFd vulnerabilities
- TI-2024-10863 Tokens in CTFd used for account activation and password resetting can be used… CVSS 4.0MEDIUM 6.3
- TI-2020-05852 Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows… CVSS 3.1CRITICAL 9.8
- TI-2026-84368 Information disclosure in CTFd team list API exposes hidden fields CVSS 4.0MEDIUM 6.9
- TI-2020-04346 session fixation in rCTF CVSS 3.1MEDIUM 6.5
Sources
- CVE-2024-11716 · CVE Program
- CVE-2024-11716 · NVD
- FIRST EPSS
- GHSA-7wpf-4jwj-r2v3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences