# CVE-2021-28000: Cross-site scripting in n/a

> Remote attackers can execute arbitrary code via persistent XSS in the Name and Address fields of the Local Services Search Engine Management System.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/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:** 19 Aug 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-j37f-5pgj-pj76

## What is CVE-2021-28000?

CVE-2021-28000 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Aug 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A persistent cross-site scripting vulnerability was discovered in Local Services Search Engine Management System Project 1.0 which allows remote attackers to execute arbitrary code via crafted payloads entered into the Name and Address fields.

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

## Which versions are affected by CVE-2021-28000?

It affects 1 product.


Products: Local Services Search Engine Management System Project Local Services Search Engine Management System.

## How do I fix CVE-2021-28000?

No fix has been published for CVE-2021-28000 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-28000 being exploited?

There is no known exploitation of CVE-2021-28000 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-3278](https://insights.sbomify.com/CVE-2021-3278/): SQL injection in n/a (critical 9.8)
- [CVE-2021-27999](https://insights.sbomify.com/CVE-2021-27999/): SQL injection in n/a (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-28000 and fix it if it is affected.

What it is: CVE-2021-28000 is a medium-severity cross-site scripting vulnerability in n/a, published on 19 Aug 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-28000 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-2021-28000/ (Markdown: https://insights.sbomify.com/CVE-2021-28000/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-28000
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-28000
- OSV: https://osv.dev/vulnerability/CVE-2021-28000

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-28000/
Summaries are generated and may contain mistakes; the official description above is the record.