CVE-2025-3603 CRITICAL

CVE-2025-3603: Flynax Bridge <= 2.2.0 - Unauthenticated Privilege Escalation via Password Update

Vendor V1Rustyle
Product Flynax Bridge
Weakness CWE-620 · Unverified password change
Published April 24, 2025
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 Flynax Bridge plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 2.2.0. This is due to the plugin not properly validating a user's identity prior to updating their details like password. This makes it possible for unauthenticated attackers to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.

Explanation of Vulnerability in Simple Terms

02Summary

Flynax Bridge versions 2.2.0 and earlier contain a critical vulnerability that allows unauthenticated attackers to read sensitive data, modify site content, or disrupt service availability. The vulnerability requires no special privileges or user interaction and can be exploited over the network. All installations should update immediately.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify content, or disable the site without authentication.

Potential impact on your site

04Site Impact

Complete compromise of confidentiality, integrity, and availability of the Flynax Bridge installation.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

April 24, 2025 CVE published
April 8, 2026 Record updated