# CVE-2021-33231: Cross-site scripting in n/a

> Remote attackers can execute arbitrary code via XSS in the New equipment page notes field of EasyVista Service Manager.

- **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:** 20 Oct 2022
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-v477-cfqw-jjcg

## What is CVE-2021-33231?

CVE-2021-33231 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross Site Scripting (XSS) vulnerability in New equipment page in EasyVista Service Manager 2018.1.181.1 allows remote attackers to run arbitrary code via the notes field.

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

## Which versions are affected by CVE-2021-33231?

It affects 1 product.


Products: Easyvista Service Manager.

## How do I fix CVE-2021-33231?

No fix has been published for CVE-2021-33231 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33231 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-33231 exists.

## Other vulnerabilities in n/a

- [CVE-2022-38490](https://insights.sbomify.com/CVE-2022-38490/): SQL injection in n/a (critical 9.6)
- [CVE-2022-38491](https://insights.sbomify.com/CVE-2022-38491/): Security feature bypass in n/a (high 8.2)
- [CVE-2022-38492](https://insights.sbomify.com/CVE-2022-38492/): SQL injection in n/a (high 7.7)
- [CVE-2022-38489](https://insights.sbomify.com/CVE-2022-38489/): Cross-site scripting in n/a (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33231 and fix it if it is affected.

What it is: CVE-2021-33231 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Oct 2022. Any signed-in user can exploit it over the network, 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-2021-33231 exists.

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-2021-33231/ (Markdown: https://insights.sbomify.com/CVE-2021-33231/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33231
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33231
- OSV: https://osv.dev/vulnerability/CVE-2021-33231

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33231/
Summaries are generated and may contain mistakes; the official description above is the record.