What is the CVSS score of CVE-2025-15403?

CVE-2025-15403 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: 0.1%.

Which versions of PHP are affected by CVE-2025-15403?

Organizations using for WordPress is vulnerable to Privilege Escalation in all face critical risk from CVE-2025-15403, a improper privilege management vulnerability rated CVSS 9.8.

How to fix or mitigate CVE-2025-15403?

Within 24 hours: Identify all affected systems running for WordPress is vulnerable to Privilege Escalation in all and apply vendor patches immediately. Monitor vendor channels for patch availability.

PHP CVE-2025-15403

CRITICAL

Improper Privilege Management (CWE-269)

2026-01-17 security@wordfence.com

WordPress Privilege Escalation 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

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 17, 2026 - 03:16 nvd

CRITICAL 9.8

DescriptionCVE.org

The RegistrationMagic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.0.7.1. This is due to the 'add_menu' function is accessible via the 'rm_user_exists' AJAX action and allows arbitrary updates to the 'admin_order' setting. This makes it possible for unauthenticated attackers to injecting an empty slug into the order parameter, and manipulate the plugin's menu generation logic, and when the admin menu is subsequently built, the plugin adds 'manage_options' capability for the target role. Note: The vulnerability can only be exploited unauthenticated, but further privilege escalation requires at least a subscriber user.

AnalysisAI

The RegistrationMagic WordPress plugin up to version 6.0 allows unauthenticated privilege escalation, enabling attackers to create admin accounts and take over WordPress sites.

Technical ContextAI

RegistrationMagic (<= 6.0) has a CWE-269 improper privilege management vulnerability in its registration flow, allowing users to assign themselves administrator-level roles during account creation.