CVE-2025-15403 CRITICAL

CVE-2025-15403: RegistrationMagic <= 6.0.7.1 - Unauthenticated Privilege Escalation via admin_order

Vendor Metagauss
Product RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login
Weakness CWE-269
Published January 17, 2026
Last update April 8, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

RegistrationMagic versions up to 6.0.7.1 contain a privilege management flaw that allows unauthenticated attackers to gain full control over the site without any user interaction. The vulnerability affects all versions from release, and attackers can read, modify, or delete any data, or disable the site entirely. Site administrators should update immediately to a version newer than 6.0.7.1.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete any site data; create admin accounts; disable the site.

Potential impact on your site

04Site Impact

Complete compromise of site data, user accounts, and availability without warning or user action.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

January 17, 2026 CVE published
April 8, 2026 Record updated