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Vulnerability record · CVE-2025-9083 · published 18 September 2025

CVE-2025-9083: Ninjaforms ninja forms deserialization of untrusted data vulnerability

Ninjaforms · Ninja Forms

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.

9.8 CVSS 3.1 Critical EPSS 0.54% · top 56.8% CWE-502 · Deserialization of untrusted data
9.8CVSS 3.1 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://wpscan.com/vulnerability/60b4d7fc-5d23-4dcf-bd7f-e202cabc2625/ ExploitThird Party Advisory
https://wpscan.com/vulnerability/60b4d7fc-5d23-4dcf-bd7f-e202cabc2625/ ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-37934Ninjaforms ninja forms code injection vulnerabilityImproper Control of Generation of Code ('Code Injection') vulnerability in Saturday Drive Ninja Forms allows Code Injection.This issue affects Ninja …EPSS 0.47%9.8CVE-2023-38386Ninjaforms ninja forms missing authorization vulnerabilityMissing Authorization vulnerability in Saturday Drive Ninja Forms.This issue affects Ninja Forms: from n/a through 3.6.25.EPSS 0.50%9.8CVE-2024-0685Ninjaforms ninja forms sql injection vulnerabilityThe Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to Second Order SQL Injection via the …EPSS 0.77%9.8CVE-2016-1209Ninja Forms WordPress plugin PHP object injection via POSTThe Ninja Forms plugin before 2.9.42.1 for WordPress fails to properly validate input, allowing PHP object injection through crafted serialized value…EPSS 62%analysed9.1CVE-2018-20981Ninjaforms ninja forms improper input validation vulnerabilityThe ninja-forms plugin before 3.3.9 for WordPress has insufficient restrictions on submission-data retrieval during Export Personal Data requests.EPSS 1.7%8.8CVE-2024-39628Ninjaforms ninja forms cross-site request forgery vulnerabilityCross-Site Request Forgery (CSRF) vulnerability in Saturday Drive Ninja Forms allows Cross Site Request Forgery.This issue affects Ninja Forms: from …EPSS 0.20%8.8CVE-2023-38393Ninjaforms ninja forms missing authorization vulnerabilityMissing Authorization vulnerability in Saturday Drive Ninja Forms.This issue affects Ninja Forms: from n/a through 3.6.25.EPSS 0.54%8.8CVE-2024-25572Ninjaforms ninja forms cross-site request forgery vulnerabilityCross-site request forgery (CSRF) vulnerability exists in Ninja Forms prior to 3.4.31. If a website administrator views a malicious page while loggin…EPSS 0.31%

Source: NIST National Vulnerability Database (record CVE-2025-9083), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.