CVE-2026-2144 HIGH

CVE-2026-2144: Magic Login Mail or QR Code <= 2.05 - Unauthenticated Privilege Escalation via Insecure QR Code File Storage

Vendor Katsushi-Kawamori
Product Magic Login Mail or QR Code
Weakness CWE-269
Published February 14, 2026
Last update April 8, 2026

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The Magic Login Mail or QR Code plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.05. This is due to the plugin storing the magic login QR code image with a predictable, static filename (QR_Code.png) in the publicly accessible WordPress uploads directory during the email sending process. The file is only deleted after wp_mail() completes, creating an exploitable race condition window. This makes it possible for unauthenticated attackers to trigger a login link request for any user, including administrators, and then exploit the race condition between QR code file creation and deletion to obtain the login URL encoded in the QR code, thereby gaining unauthorized access to the targeted user's account.

Explanation of Vulnerability in Simple Terms

02Summary

Magic Login Mail or QR Code versions 2.05 and earlier contain a privilege management flaw that allows an unauthenticated attacker to read sensitive data, modify site content, or disrupt service. The vulnerability requires specific network conditions to exploit but does not require user interaction. Site administrators should update to a version newer than 2.05 immediately.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify site content, or disrupt service without authentication.

Potential impact on your site

04Site Impact

Attackers can access private information, alter pages, or take the site offline without logging in.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

February 14, 2026 CVE published
April 8, 2026 Record updated