CVE-2025-3603
📋 TL;DR
The Flynax Bridge WordPress plugin has a critical authentication bypass vulnerability that allows unauthenticated attackers to reset any user's password, including administrators. This enables complete account takeover and privilege escalation. All WordPress sites using this plugin up to version 2.2.0 are affected.
💻 Affected Systems
- Flynax Bridge WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete site compromise where attackers take over administrator accounts, install backdoors, steal sensitive data, and deface or destroy the website.
Likely Case
Attackers gain administrative access to WordPress sites, potentially leading to data theft, malware injection, or ransomware deployment.
If Mitigated
With proper monitoring and detection, unauthorized password resets can be detected and blocked before significant damage occurs.
🎯 Exploit Status
The vulnerability is simple to exploit with publicly available technical details. Attackers can use automated tools to mass-exploit vulnerable sites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.1 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/flynax-bridge/trunk/request.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Flynax Bridge and update to version 2.2.1 or later. 4. If update not available, disable and remove the plugin immediately.
🔧 Temporary Workarounds
Disable Flynax Bridge Plugin
linuxImmediately disable the vulnerable plugin to prevent exploitation
wp plugin deactivate flynax-bridge
🧯 If You Can't Patch
- Disable the Flynax Bridge plugin immediately
- Implement web application firewall rules to block requests to the vulnerable endpoint
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Flynax Bridge version 2.2.0 or earlierCheck Version:
wp plugin list --name=flynax-bridge --field=versionVerify Fix Applied:
Verify Flynax Bridge plugin is updated to version 2.2.1 or later, or confirm plugin is disabled/removed📡 Detection & Monitoring
Log Indicators:
- Unusual password reset requests, especially for admin accounts from unfamiliar IPs
- Multiple failed login attempts followed by successful login from new IP
Network Indicators:
- HTTP POST requests to /wp-content/plugins/flynax-bridge/request.php with password reset parameters
SIEM Query:
source="wordpress.log" AND ("password reset" OR "flynax-bridge") AND status=200