CVE-2025-9083 Ninja-forms < 3.11.1 - Unauthenticated PHP Objection

Q: What is CVE-2025-9083?

CVE-2025-9083 is a critical unsafe deserialization vulnerability in Ninjaforms Ninja Forms, published on 18 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2025-9083 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9083 exists.

Q: How do I fix CVE-2025-9083?

No fix has been published for CVE-2025-9083 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 18 Sep 2025 Updated 22 Sep 2025

Unauthenticated attackers can trigger PHP object injection via form fields, potentially leading to code execution if suitable gadgets exist.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-9083?

CVE-2025-9083 is a critical unsafe deserialization vulnerability in Ninjaforms Ninja Forms, published on 18 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Ninja Forms WordPress plugin before 3.11.1 unserializes user input via form field, which could allow Unauthenticated users to perform PHP Object Injection when a suitable gadget is present on the blog.

Weakness: CWE-502

Which versions are affected by CVE-2025-9083?

It affects 1 product.

Products include Ninjaforms Ninja Forms.

How do I fix CVE-2025-9083?

No fix has been published for CVE-2025-9083 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-9083 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9083 exists.

All Ninjaforms Ninja Forms vulnerabilities

Sources

Also known as GHSA-q88q-7pp2-q72v.