# CVE-2017-18700: Cross-site scripting in n/a

> Stored XSS in NETGEAR routers allows attackers to inject scripts, potentially leading to session hijacking or malicious actions.

- **Severity:** Medium 5.2 (`CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:N/S:C/UI:R`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Apr 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hhj9-744r-pjmr

## What is CVE-2017-18700?

CVE-2017-18700 is a medium-severity cross-site scripting vulnerability in Netgear D6400 Firmware, published on 24 Apr 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Certain NETGEAR devices are affected by stored XSS. This affects D6400 before 1.0.0.60, D7000 before 1.0.1.50, D8500 before 1.0.3.29, EX6200 before 1.0.3.84, EX7000 before 1.0.0.60, R6250 before 1.0.4.16, R6300v2 before 1.0.4.18, R6400 before 1.01.32, R6400v2 before 1.0.2.44, R6700 before 1.0.1.36, R6900 before 1.0.1.34, R6900P before 1.3.0.8, R7000 before 1.0.9.14, R7000P before 1.3.0.8, R7100LG before 1.0.0.34, R7300DST before 1.0.0.56, R7900 before 1.0.1.26, R8000 before 1.0.4.4, R8300 before 1.0.2.106, R8500 before 1.0.2.106, R9000 before 1.0.2.52, WNDR3400v3 before 1.0.1.16, WNR3500Lv2 before 1.2.0.46, and WNDR3700v5 before 1.1.0.48.

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

## Which versions are affected by CVE-2017-18700?

It affects 23 products.


Products: Netgear D6400 Firmware, Netgear D7000 Firmware, Netgear D8500 Firmware, Netgear Ex6200 Firmware, Netgear Ex7000 Firmware, Netgear R6250 Firmware, Netgear R6300 Firmware, Netgear R6400 Firmware, Netgear R6700 Firmware, Netgear R6900 Firmware, Netgear R6900p Firmware, Netgear R7000 Firmware, Netgear R7000p Firmware, Netgear R7100lg Firmware, Netgear R7300dst Firmware, Netgear R7900 Firmware, Netgear R8000 Firmware, Netgear R8300 Firmware, Netgear R8500 Firmware, Netgear R9000 Firmware and 3 more.

## How do I fix CVE-2017-18700?

No fix has been published for CVE-2017-18700 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-18700 being exploited?

There is no known exploitation of CVE-2017-18700 in the wild and no public exploit code.

## Other vulnerabilities in Netgear D6400 Firmware

- [CVE-2018-21162](https://insights.sbomify.com/CVE-2018-21162/): Command injection in n/a (high 8.8)
- [CVE-2019-20728](https://insights.sbomify.com/CVE-2019-20728/): Memory corruption in n/a (medium 6.3)
- [CVE-2025-7407](https://insights.sbomify.com/CVE-2025-7407/): Netgear D6400 diag.cgi os command injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-18700 and fix it if it is affected.

What it is: CVE-2017-18700 is a medium-severity cross-site scripting vulnerability in Netgear D6400 Firmware, published on 24 Apr 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-18700 in the wild and no public exploit code.

Affected product: Netgear D6400 Firmware. 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-2017-18700/ (Markdown: https://insights.sbomify.com/CVE-2017-18700/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-18700
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-18700
- OSV: https://osv.dev/vulnerability/CVE-2017-18700

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-18700/
Summaries are generated and may contain mistakes; the official description above is the record.