PHP Object Injection Vulnerability in Ninja Forms Plugin by Ninja Squad
CVE-2025-9083

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
18 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9083?

The Ninja Forms plugin for WordPress, before version 3.11.1, contains a vulnerability that allows unauthenticated users to exploit PHP Object Injection through unserialization of user input in form fields. If the blog contains a suitable gadget, this flaw could be leveraged, potentially resulting in serious security breaches.

Affected Version(s)

Ninja Forms 0 < 3.11.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

wcraft
WPScan
.
CVE-2025-9083 : PHP Object Injection Vulnerability in Ninja Forms Plugin by Ninja Squad