# CVE-2020-36825: cyberaz0r WebRAT api.php download_file unrestricted upload

> Unrestricted file upload in WebRAT allows remote attackers to upload malicious files, potentially leading to code execution.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Mar 2024
- **Updated:** 10 Apr 2025
- **Also known as:** GHSA-wvcr-5p3p-5934

## What is CVE-2020-36825?

CVE-2020-36825 is a medium-severity vulnerability in cyberaz0r WebRAT, published on 24 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

** UNSUPPORTED WHEN ASSIGNED ** ** DISPUTED ** A vulnerability has been found in cyberaz0r WebRAT up to 20191222 and classified as critical. This vulnerability affects the function download_file of the file Server/api.php. The manipulation of the argument name leads to unrestricted upload. The attack can be initiated remotely. The real existence of this vulnerability is still doubted at the moment. The patch is identified as 0c394a795b9c10c07085361e6fcea286ee793701. It is recommended to apply a patch to fix this issue. VDB-257782 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: The issue, discovered in a 20-stars GitHub project (now private) by its author, had CVE requested by a third party 4 years post-resolution, referencing the fix commit (now a broken link). Due to minimal attention and usage, it should not be eligible for CVE according to the project maintainer.

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

## Which versions are affected by CVE-2020-36825?


## How do I fix CVE-2020-36825?

No fix has been published for CVE-2020-36825 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36825 being exploited?

There is no known exploitation of CVE-2020-36825 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36825 and fix it if it is affected.

What it is: CVE-2020-36825 is a medium-severity vulnerability in cyberaz0r WebRAT, published on 24 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-36825 in the wild and no public exploit code.

Affected product: cyberaz0r WebRAT. 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-2020-36825/ (Markdown: https://insights.sbomify.com/CVE-2020-36825/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36825
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36825
- OSV: https://osv.dev/vulnerability/CVE-2020-36825

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-36825/
Summaries are generated and may contain mistakes; the official description above is the record.