CVE-2024-11716Public exploitNetwork attack vector

Scoreboard manipulation via resettable bracket assignment

Published Jan 2, 2025 · Updated Nov 3, 2025

Business logic error in CTFd 3.7.0 through 3.7.4 allows remote authenticated users to switch scoreboard brackets during a competition. CTFd/schemas/users.py accepts a null bracket identifier through the self-profile API, clearing the assignment before validation permits a second update to a different bracket. Any registered participant can bypass the one-time assignment rule and move between bracketed prize or scoring groups without administrator approval.

CVSS severity5.3
Medium
EPSS probability11.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Business logic error in CTFd 3.7.0 through 3.7.4 allows remote authenticated users to switch scoreboard brackets during a competition. CTFd/schemas/users.py accepts a null bracket identifier through the self-profile API, clearing the assignment before validation permits a second update to a different bracket. Any registered participant can bypass the one-time assignment rule and move between bracketed prize or scoring groups without administrator approval.

The record

CVE
CVE-2024-11716
Published
Jan 2, 2025
Updated
Nov 3, 2025
Vendor
CTFd LLC
Product
CTFd
Classifications
CWE-837
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.7.0 <=3.7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CTFd LLC · CTFdversion=3.7.0 <=3.7.4

Published CVSS scores

5.3CERT PolskaCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-837Improper Enforcement of a Single, Unique Action

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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