# CVE-2020-5679: EC-CUBE Improper Restriction of Rendered UI Layers or Frames

> Clickjacking vulnerability allows attackers to trick logged-in administrators into performing unintended operations via crafted pages.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-rwh8-h525-4jvj

## What is CVE-2020-5679?

CVE-2020-5679 is a medium-severity vulnerability in EC-CUBE, published on 3 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-1021 (Improper Restriction of Rendered UI Layers or Frames)

## Which versions are affected by CVE-2020-5679?

2 open source packages ship an affected version, including ec-cube/ec-cube. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `ec-cube/ec-cube` | Packagist | From 3.0.0 to 3.0.18 | None |
| `ec-cube/ec-cube` | Packagist | From 3.0.0 to 3.0.18 | None |

Products: Ec-Cube Ec-Cube.

## How do I fix CVE-2020-5679?

No fix has been published for CVE-2020-5679 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-5679 being exploited?

There is no known exploitation of CVE-2020-5679 in the wild and no public exploit code.

## Other vulnerabilities in EC-CUBE

- [CVE-2020-5590](https://insights.sbomify.com/CVE-2020-5590/): EC-CUBE Directory traversal vulnerability (high 8.1)
- [CVE-2021-20778](https://insights.sbomify.com/CVE-2021-20778/): Missing authorization in EC-CUBE (high 7.5)
- [CVE-2020-5680](https://insights.sbomify.com/CVE-2020-5680/): EC-CUBE Improper input validation vulnerability (high 7.5)
- [CVE-2008-4991](https://insights.sbomify.com/CVE-2008-4991/): SQL injection in n/a (high 7.5)
- [CVE-2008-4534](https://insights.sbomify.com/CVE-2008-4534/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-5679 and fix it if it is affected.

What it is: CVE-2020-5679 is a medium-severity vulnerability in EC-CUBE, published on 3 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-5679 in the wild and no public exploit code.

Affected packages and fixed versions:
- ec-cube/ec-cube (Packagist): affected from 3.0.0 up to 3.0.18; no fix listed
- ec-cube/ec-cube (Packagist): affected from 3.0.0 up to 3.0.18; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-5679/ (Markdown: https://insights.sbomify.com/CVE-2020-5679/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-5679
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-5679
- OSV: https://osv.dev/vulnerability/CVE-2020-5679

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-5679/
Summaries are generated and may contain mistakes; the official description above is the record.