# CVE-2022-40289: Cross-site scripting in PHP Point of Sale

> Authenticated attackers can inject malicious scripts via file upload/download, leading to privilege escalation or account compromise.

- **Severity:** Critical 9.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H`)
- **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 Oct 2022
- **Updated:** 6 May 2025
- **Also known as:** GHSA-wh4g-hrhv-mg7w

## What is CVE-2022-40289?

CVE-2022-40289 is a critical cross-site scripting vulnerability in PHP Point of Sale, published on 31 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

The application was vulnerable to an authenticated Stored Cross-Site Scripting (XSS) in the upload and download functionality, which could be leveraged to escalate privileges or compromise any accounts they can coerce into observing the targeted files.

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

## Which versions are affected by CVE-2022-40289?

It affects 1 product.


Products: Phppointofsale Php Point of Sale.

## How do I fix CVE-2022-40289?

No fix has been published for CVE-2022-40289 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-40289 being exploited?

There is no known exploitation of CVE-2022-40289 in the wild and no public exploit code.

## Other vulnerabilities in PHP Point of Sale

- [CVE-2022-40293](https://insights.sbomify.com/CVE-2022-40293/): Session fixation in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC. (critical 9.8)
- [CVE-2022-40296](https://insights.sbomify.com/CVE-2022-40296/): Server-side request forgery (SSRF) in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC. (critical 9.8)
- [CVE-2022-40287](https://insights.sbomify.com/CVE-2022-40287/): Stored cross-site scripting in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC via user profile data fields. (critical 9.0)
- [CVE-2022-40288](https://insights.sbomify.com/CVE-2022-40288/): Stored cross-site scripting in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC via messaging functionality (critical 9.0)
- [CVE-2022-40291](https://insights.sbomify.com/CVE-2022-40291/): Cross-site request forgery (CSRF) in PHP Point of Sale version 19.0, by PHP Point of Sale, LLC (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-40289 and fix it if it is affected.

What it is: CVE-2022-40289 is a critical cross-site scripting vulnerability in PHP Point of Sale, published on 31 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: There is no known exploitation of CVE-2022-40289 in the wild and no public exploit code.

Affected product: PHP Point of Sale. 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-2022-40289/ (Markdown: https://insights.sbomify.com/CVE-2022-40289/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-40289
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-40289
- OSV: https://osv.dev/vulnerability/CVE-2022-40289

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-40289/
Summaries are generated and may contain mistakes; the official description above is the record.