# CVE-2020-26923: Cross-site scripting in n/a

> Stored XSS in NETGEAR wireless controllers allows attackers to inject scripts, potentially leading to session hijacking or code execution.

- **Severity:** Medium 4.3 (`CVSS:3.1/AC:L/AV:A/A:N/C:L/I:L/PR:H/S:C/UI:R`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 9 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-6r42-2ccv-qrfw

## What is CVE-2020-26923?

CVE-2020-26923 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Oct 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 WC7500 before 6.5.5.24, WC7600 before 6.5.5.24, WC7600v2 before 6.5.5.24, and WC9500 before 6.5.5.24.

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

## Which versions are affected by CVE-2020-26923?

It affects 4 products.


Products: Netgear Wc7500 Firmware, Netgear Wc7600 Firmware, Netgear Wc7600v2 Firmware, Netgear Wc9500 Firmware.

## How do I fix CVE-2020-26923?

No fix has been published for CVE-2020-26923 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-26923 being exploited?

There is no known exploitation of CVE-2020-26923 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-11106](https://insights.sbomify.com/CVE-2018-11106/): Command injection in WC7500 (critical 9.8)
- [CVE-2018-21123](https://insights.sbomify.com/CVE-2018-21123/): Command injection in n/a (high 8.8)
- [CVE-2020-26922](https://insights.sbomify.com/CVE-2020-26922/): Command injection in n/a (medium 6.4)
- [CVE-2020-26931](https://insights.sbomify.com/CVE-2020-26931/): Information disclosure in n/a (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-26923 and fix it if it is affected.

What it is: CVE-2020-26923 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 Oct 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-2020-26923 in the wild and no public exploit code.

Affected product: n/a. 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-2020-26923/ (Markdown: https://insights.sbomify.com/CVE-2020-26923/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-26923
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-26923
- OSV: https://osv.dev/vulnerability/CVE-2020-26923

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-26923/
Summaries are generated and may contain mistakes; the official description above is the record.