The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.11.0 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
CVE-2025-9083 is a high severity with CVSS 8.1 Vulnerability issue affecting the Plugin Ninja Forms – The Contact Form Builder That Grows With You. It affects Versions up to 3.11.0 and is fixed in 3.11.1.
CVE-2025-9083 is tracked for the Plugin Ninja Forms – The Contact Form Builder That Grows With You as high severity with CVSS 8.1. The affected range is Versions up to 3.11.0. Update Ninja Forms – The Contact Form Builder That Grows With You to 3.11.1 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
ninja-forms
View on wordpress.org
|
| CVE | CVE-2025-9083 |
| Patched Versions |
3.11.1
|
| Affected Versions |
Versions up to 3.11.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Ninja Forms Contact Form <= 3.3.21.1 - SQL Injection
Ninja Forms Contact Form 2.9.36 - 2.9.42 - Unauthenticated Arbitrary File Upload
Ninja Forms <= 3.3.8 - Insufficient Restrictions during Export Personal Data requests
Ninja Forms Contact Form <= 3.4.33 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure
Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress <= 3.4.27 - Cross-Site Request Forgery to Plugin Installation
Ninja Forms Contact Form <= 3.3.13 - CSV Injection
Ninja Forms Contact Form 2.9.36 - 2.9.42 - PHP Object Injection
Ninja Forms <= 3.14.0 - Unauthenticated Information Disclosure in nf_ajax_submit AJAX Action
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