# CVE-2022-0888: Ninja Forms - File Uploads Extension <= 3.3.0 - Arbitrary File Upload

> Unauthenticated attackers can upload malicious files to achieve remote code execution in the Ninja Forms File Uploads Extension.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Mar 2022
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-6g4g-f39p-q93f

## What is CVE-2022-0888?

CVE-2022-0888 is a critical vulnerability in SaturdayDrive Ninja Forms - File Uploads, published on 23 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Ninja Forms - File Uploads Extension WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/includes/ajax/controllers/uploads.php file which can be bypassed making it possible for unauthenticated attackers to upload malicious files that can be used to obtain remote code execution, in versions up to and including 3.3.0

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

## Which versions are affected by CVE-2022-0888?

It affects 1 product.


Products: Ninjaforms Ninja Forms File Uploads.

## How do I fix CVE-2022-0888?

No fix has been published for CVE-2022-0888 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-0888 being exploited?

There is no known exploitation of CVE-2022-0888 in the wild and no public exploit code.

## Other vulnerabilities in SaturdayDrive Ninja Forms - File Uploads

- [CVE-2019-10869](https://insights.sbomify.com/CVE-2019-10869/): Path traversal in n/a (high 8.1)
- [CVE-2024-1596](https://insights.sbomify.com/CVE-2024-1596/): Ninja Forms File Uploads <= 3.3.16 - Unauthenticated Stored Cross-Site Scripting via File Upload (high 7.2)
- [CVE-2022-0889](https://insights.sbomify.com/CVE-2022-0889/): Ninja Forms - File Uploads Extension <= 3.3.12 - Reflected Cross-Site Scripting (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-0888 and fix it if it is affected.

What it is: CVE-2022-0888 is a critical vulnerability in SaturdayDrive Ninja Forms - File Uploads, published on 23 Mar 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-2022-0888 in the wild and no public exploit code.

Affected product: SaturdayDrive Ninja Forms - File Uploads. 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-2022-0888/ (Markdown: https://insights.sbomify.com/CVE-2022-0888/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-0888
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-0888
- OSV: https://osv.dev/vulnerability/CVE-2022-0888

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-0888/
Summaries are generated and may contain mistakes; the official description above is the record.