CVE-2025-15403: A Critical Vulnerability in RegistrationMagic

The recent discovery of a critical vulnerability, identified as CVE-2025-15403, poses a serious threat to web server operators using the RegistrationMagic plugin for WordPress. This alert is crucial for system administrators and hosting providers to understand the implications and to take immediate action to secure their systems.

Overview of CVE-2025-15403

This vulnerability affects all versions of the RegistrationMagic plugin up to and including 6.0.7.1. Attackers can exploit the 'add_menu' function, which is accessible through the 'rm_user_exists' AJAX action. This compromised access allows unauthorized users to alter the 'admin_order' setting, leading to privilege escalation.

Why This Matters

For server administrators and hosting providers, this vulnerability is particularly relevant due to the potential for unauthorized access. If exploited, attackers can manipulate server configurations without any authentication, potentially leading to severe data breaches. The risk of brute-force attacks increases when such vulnerabilities surface, making proactive measures essential for maintaining server security.

Mitigation Steps

To address the CVE-2025-15403 vulnerability, website owners must take immediate steps:

• Update Plugins: Ensure that the RegistrationMagic plugin is updated to version 6.0.7.2 or later to eliminate the vulnerability.
• Verify Settings: Review the 'admin_order' setting to ensure it is secure.
• Audit User Roles: Regularly check user role capabilities and adjust them according to the least privilege principle.
• Implement Web Application Firewalls: Utilize a robust web application firewall (WAF) to detect and block potential exploit attempts.

Server security is not just about reactive measures; proactive protection is necessary to safeguard your infrastructure. We invite you to strengthen your server defenses by trying BitNinja’s free 7-day trial. Experience how advanced malware detection and security measures can protect your web applications effectively.