# CVE-2021-25161: Cross-site scripting in Aruba Instant Access Points

> Remote attackers can execute arbitrary scripts in the context of the Aruba Instant Access Point management interface, potentially compromising user sessions.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 Mar 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-g3xx-qmpj-v42m

## What is CVE-2021-25161?

CVE-2021-25161 is a medium-severity cross-site scripting vulnerability in Siemens Scalance W1750d Firmware, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A remote cross-site scripting (xss) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.

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

## Which versions are affected by CVE-2021-25161?

It affects 2 products.


Products: Arubanetworks Instant, Siemens Scalance W1750d Firmware.

## How do I fix CVE-2021-25161?

No fix has been published for CVE-2021-25161 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-25161 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25161 exists.

Public exploit code:

- Aruba Instant (IAP) - Remote Code Execution (exploitdb)
- Aruba Instant Access Point (IAP) - Cross-Site Scripting (nuclei): http/cves/2021/CVE-2021-25161.yaml

## Other vulnerabilities in Siemens Scalance W1750d Firmware

- [CVE-2019-5319](https://insights.sbomify.com/CVE-2019-5319/): Memory corruption in Aruba Instant Access Points (critical 9.8)
- [CVE-2020-24636](https://insights.sbomify.com/CVE-2020-24636/): Command injection in Aruba Instant Access Points (critical 9.8)
- [CVE-2021-25149](https://insights.sbomify.com/CVE-2021-25149/): Memory corruption in Aruba Instant Access Points (critical 9.8)
- [CVE-2021-25150](https://insights.sbomify.com/CVE-2021-25150/): Command injection in Aruba Instant Access Points (high 8.8)
- [CVE-2021-25144](https://insights.sbomify.com/CVE-2021-25144/): Memory corruption in Aruba Instant Access Points (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-25161 and fix it if it is affected.

What it is: CVE-2021-25161 is a medium-severity cross-site scripting vulnerability in Siemens Scalance W1750d Firmware, published on 30 Mar 2021. An attacker can exploit it over the internet without logging in, 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-2021-25161 exists.

Affected product: Siemens Scalance W1750d 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-2021-25161/ (Markdown: https://insights.sbomify.com/CVE-2021-25161/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-25161
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-25161
- OSV: https://osv.dev/vulnerability/CVE-2021-25161

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-25161/
Summaries are generated and may contain mistakes; the official description above is the record.