# CVE-2020-16206: Cross-site scripting in N-Tron 702-W / 702M12-W

> Stored cross-site scripting allows remote attackers to execute arbitrary code and access sensitive data on N-Tron industrial switches.

- **Severity:** Critical 9.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 1 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-422c-j857-w7c6

## What is CVE-2020-16206?

CVE-2020-16206 is a critical cross-site scripting vulnerability in N-Tron 702-W / 702M12-W, published on 1 Sep 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The affected product is vulnerable to stored cross-site scripting, which may allow an attacker to remotely execute arbitrary code to gain access to sensitive data on the N-Tron 702-W / 702M12-W (all versions).

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2020-16206?

It affects 2 products.


Products: Redlion N-Tron 702-W Firmware, Redlion N-Tron 702m12-W Firmware.

## How do I fix CVE-2020-16206?

No fix has been published for CVE-2020-16206 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-16206 being exploited?

There is no known exploitation of CVE-2020-16206 in the wild and no public exploit code.

## Other vulnerabilities in N-Tron 702-W / 702M12-W

- [CVE-2020-16204](https://insights.sbomify.com/CVE-2020-16204/): Command injection in N-Tron 702-W / 702M12-W (critical 9.8)
- [CVE-2020-16210](https://insights.sbomify.com/CVE-2020-16210/): Cross-site scripting in N-Tron 702-W / 702M12-W (critical 9.0)
- [CVE-2020-16208](https://insights.sbomify.com/CVE-2020-16208/): Cross-site request forgery in N-Tron 702-W / 702M12-W (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-16206 and fix it if it is affected.

What it is: CVE-2020-16206 is a critical cross-site scripting vulnerability in N-Tron 702-W / 702M12-W, published on 1 Sep 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-16206 in the wild and no public exploit code.

Affected product: N-Tron 702-W / 702M12-W. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2020-16206/ (Markdown: https://insights.sbomify.com/CVE-2020-16206/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-16206
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-16206
- OSV: https://osv.dev/vulnerability/CVE-2020-16206

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-16206/
Summaries are generated and may contain mistakes; the official description above is the record.