# CVE-2023-34360: ASUS RT-AX88U - Stored XSS

> A remote attacker with regular user privileges can inject JavaScript via uploaded images in the Custom User Icons feature, leading to stored XSS.

- **Severity:** High 8.2 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L`)
- **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:** 31 Jul 2023
- **Updated:** 27 Sep 2024
- **Also known as:** GHSA-28cg-8hgj-ww5p

## What is CVE-2023-34360?

CVE-2023-34360 is a high-severity cross-site scripting vulnerability in ASUS RT-AX88U, published on 31 Jul 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A stored cross-site scripting (XSS) issue was discovered within the Custom User Icons functionality of ASUS RT-AX88U running firmware versions 3.0.0.4.388.23110 and prior.  After a remote attacker logging in device with regular user privilege, the remote attacker can perform a Stored Cross-site Scripting (XSS) attack by uploading image which containing JavaScript code.

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

## Which versions are affected by CVE-2023-34360?

It affects 1 product.


Products: Asus Rt-Ax88u Firmware.

## How do I fix CVE-2023-34360?

No fix has been published for CVE-2023-34360 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-34360 being exploited?

There is no known exploitation of CVE-2023-34360 in the wild and no public exploit code.

## Other vulnerabilities in ASUS RT-AX88U

- [CVE-2022-26674](https://insights.sbomify.com/CVE-2022-26674/): ASUS RT-AX88U - Format String (critical 9.8)
- [CVE-2023-41349](https://insights.sbomify.com/CVE-2023-41349/): ASUS RT-AX88U - externally-controlled format string (high 8.8)
- [CVE-2023-34358](https://insights.sbomify.com/CVE-2023-34358/): ASUS RT-AX88U - Out-of-bounds Read - 1 (high 7.5)
- [CVE-2023-34359](https://insights.sbomify.com/CVE-2023-34359/): ASUS RT-AX88U - Out-of-bounds Read - 2 (high 7.5)
- [CVE-2021-41437](https://insights.sbomify.com/CVE-2021-41437/): Other in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-34360 and fix it if it is affected.

What it is: CVE-2023-34360 is a high-severity cross-site scripting vulnerability in ASUS RT-AX88U, published on 31 Jul 2023. 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-2023-34360 in the wild and no public exploit code.

Affected product: ASUS RT-AX88U. 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-2023-34360/ (Markdown: https://insights.sbomify.com/CVE-2023-34360/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-34360
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-34360
- OSV: https://osv.dev/vulnerability/CVE-2023-34360

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-34360/
Summaries are generated and may contain mistakes; the official description above is the record.