What is the CVSS score of CVE-2025-9083?

CVE-2025-9083 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of PHP are affected by CVE-2025-9083?

Organizations using Ninja Forms WordPress face critical risk from CVE-2025-9083, a insecure deserialization vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-9083?

Yes, a public proof-of-concept exploit is available for CVE-2025-9083. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2025-9083?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Restrict deserialization to trusted data sources and implement integrity checks.

PHP CVE-2025-9083

CRITICAL

Deserialization of Untrusted Data (CWE-502)

2025-09-18 contact@wpscan.com

PHP WordPress Deserialization Ninja Forms

9.8

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:12 vuln.today

PoC Detected

Dec 23, 2025 - 18:59 vuln.today

Public exploit code

CVE Published

Sep 18, 2025 - 06:15 nvd

CRITICAL 9.8

DescriptionNVD

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. 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. Affected products include: Ninjaforms Ninja Forms. Version information: before 3.11.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.

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CVE-2025-9083 vulnerability details – vuln.today

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PHP CVE-2025-9083

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code