What is the CVSS score of CVE-2025-13486?

CVE-2025-13486 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: 75.3%.

Which versions of PHP are affected by CVE-2025-13486?

A critical remote code execution vulnerability in the Advanced Custom Fields: Extended WordPress plugin allows unauthenticated attackers to execute arbitrary code and gain administrative control of…

Is there a public PoC exploit available for CVE-2025-13486?

Yes, a public proof-of-concept exploit is available for CVE-2025-13486. Prioritise patching immediately. EPSS: 75.3%.

How to fix or mitigate CVE-2025-13486?

Within 24 hours: Identify all WordPress instances running Advanced Custom Fields: Extended versions 0.9.0.5-0.9.1.1 and disable or deactivate the plugin immediately. Within 7 days: Implement Web Application Firewall rules to block malicious requests to the prepare_form() function, conduct forensic analysis for signs of compromise, and audit user accounts for unauthorized administrative additions. Within 30 days: Migrate to a patched version or alternative plugin once available, perform full security assessment of affected systems, and reset all credentials for administrative accounts.

PHP CVE-2025-13486

EUVD-2025-200730 CRITICAL

Code Injection (CWE-94)

2025-12-03 security@wordfence.com

WordPress Code Injection RCE PHP

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

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

EUVD ID Assigned

Mar 15, 2026 - 16:14 euvd

EUVD-2025-200730

Analysis Generated

Mar 15, 2026 - 16:14 vuln.today

CVE Published

Dec 03, 2025 - 07:16 nvd

CRITICAL 9.8

DescriptionCVE.org

The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Remote Code Execution in versions 0.9.0.5 through 0.9.1.1 via the prepare_form() function. This is due to the function accepting user input and then passing that through call_user_func_array(). This makes it possible for unauthenticated attackers to execute arbitrary code on the server, which can be leveraged to inject backdoors or create new administrative user accounts.

Analysis

Technical ContextAI

Remote code execution allows an attacker to run arbitrary commands or code on the target system over a network without prior authentication. This vulnerability is classified as Code Injection (CWE-94).

RemediationAI

Apply vendor patches immediately. Restrict network access to vulnerable services. Implement network segmentation and monitoring for anomalous activity.