# CVE-2023-34354: Cross-site scripting in Surf SOHO HW1

> An authenticated attacker can inject arbitrary JavaScript into the router's brand upload feature, potentially compromising other users' browsers.

- **Severity:** Low 3.4 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Oct 2023
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-qr2h-wj83-58jc

## What is CVE-2023-34354?

CVE-2023-34354 is a low-severity cross-site scripting vulnerability in Peplink Surf SOHO HW1, published on 11 Oct 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A stored cross-site scripting (XSS) vulnerability exists in the upload_brand.cgi functionality of peplink Surf SOHO HW1 v6.3.5 (in QEMU). A specially crafted HTTP request can lead to execution of arbitrary javascript in another user's browser. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page)

## Which versions are affected by CVE-2023-34354?

It affects 1 product.


Products: Peplink Surf Soho Firmware.

## How do I fix CVE-2023-34354?

No fix has been published for CVE-2023-34354 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-34354 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34354 exists.

## Other vulnerabilities in Peplink Surf SOHO HW1

- [CVE-2023-27380](https://insights.sbomify.com/CVE-2023-27380/): Command injection in Surf SOHO HW1 (high 7.2)
- [CVE-2023-28381](https://insights.sbomify.com/CVE-2023-28381/): Command injection in Surf SOHO HW1 (high 7.2)
- [CVE-2023-34356](https://insights.sbomify.com/CVE-2023-34356/): Command injection in Surf SOHO HW1 (high 7.2)
- [CVE-2023-35193](https://insights.sbomify.com/CVE-2023-35193/): Command injection in Surf SOHO HW1 (high 7.2)
- [CVE-2023-35194](https://insights.sbomify.com/CVE-2023-35194/): Command injection in Surf SOHO HW1 (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-34354 and fix it if it is affected.

What it is: CVE-2023-34354 is a low-severity cross-site scripting vulnerability in Peplink Surf SOHO HW1, published on 11 Oct 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34354 exists.

Affected product: Peplink Surf SOHO HW1. 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-2023-34354/ (Markdown: https://insights.sbomify.com/CVE-2023-34354/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34354
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34354
- OSV: https://osv.dev/vulnerability/CVE-2023-34354

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-34354/
Summaries are generated and may contain mistakes; the official description above is the record.