# CVE-2021-40094: Cross-site scripting in n/a

> Attackers can inject malicious code into user devices via DOM-based XSS in SquaredUp for SCOM, potentially compromising user sessions.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **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:** 7 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qv89-64x4-4p5x

## What is CVE-2021-40094?

CVE-2021-40094 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Dec 2021. 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 DOM-based XSS vulnerability affects SquaredUp for SCOM 5.2.1.6654. If successfully exploited, this vulnerability may allow attackers to inject malicious code into a user's device.

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

## Which versions are affected by CVE-2021-40094?

It affects 1 product.


Products: Squaredup Squaredup.

## How do I fix CVE-2021-40094?

No fix has been published for CVE-2021-40094 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-40094 being exploited?

There is no known exploitation of CVE-2021-40094 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-40091](https://insights.sbomify.com/CVE-2021-40091/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2020-9388](https://insights.sbomify.com/CVE-2020-9388/): Cross-site request forgery in n/a (medium 6.5)
- [CVE-2021-40092](https://insights.sbomify.com/CVE-2021-40092/): Cross-site scripting in n/a (medium 5.4)
- [CVE-2021-40093](https://insights.sbomify.com/CVE-2021-40093/): Cross-site scripting in n/a (medium 5.4)
- [CVE-2021-40096](https://insights.sbomify.com/CVE-2021-40096/): Cross-site scripting in n/a (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-40094 and fix it if it is affected.

What it is: CVE-2021-40094 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Dec 2021. 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-2021-40094 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-2021-40094/ (Markdown: https://insights.sbomify.com/CVE-2021-40094/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-40094
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-40094
- OSV: https://osv.dev/vulnerability/CVE-2021-40094

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-40094/
Summaries are generated and may contain mistakes; the official description above is the record.