# CVE-2021-33009: mySCADA myPRO Unrestricted Upload of File with Dangerous Type

> Unauthenticated attackers can upload arbitrary files to mySCADA myPRO, potentially leading to remote code execution.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 May 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-wvx8-9374-g4w7

## What is CVE-2021-33009?

CVE-2021-33009 is a high-severity vulnerability in mySCADA myPRO, published on 13 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

mySCADA myPRO versions prior to 8.20.0 allows an unauthenticated remote attacker to upload arbitrary files to the file system.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2021-33009?

It affects 1 product.


Products: Myscada Mypro.

## How do I fix CVE-2021-33009?

No fix has been published for CVE-2021-33009 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33009 being exploited?

There is no known exploitation of CVE-2021-33009 in the wild and no public exploit code.

## Other vulnerabilities in mySCADA myPRO

- [CVE-2025-24865](https://insights.sbomify.com/CVE-2025-24865/): mySCADA myPRO Manager Missing Authentication for Critical Function (critical 10.0)
- [CVE-2021-22657](https://insights.sbomify.com/CVE-2021-22657/): mySCADA myPRO (critical 10.0)
- [CVE-2021-23198](https://insights.sbomify.com/CVE-2021-23198/): mySCADA myPRO (critical 10.0)
- [CVE-2021-43981](https://insights.sbomify.com/CVE-2021-43981/): mySCADA myPRO (critical 10.0)
- [CVE-2021-43984](https://insights.sbomify.com/CVE-2021-43984/): mySCADA myPRO (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33009 and fix it if it is affected.

What it is: CVE-2021-33009 is a high-severity vulnerability in mySCADA myPRO, published on 13 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-33009 in the wild and no public exploit code.

Affected product: mySCADA myPRO. 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-2021-33009/ (Markdown: https://insights.sbomify.com/CVE-2021-33009/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33009
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33009
- OSV: https://osv.dev/vulnerability/CVE-2021-33009

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33009/
Summaries are generated and may contain mistakes; the official description above is the record.