CVE-2024-0189: XSS in RRJ Nueva Ecija Engineer Portal

An attacker can exploit this XSS vulnerability by injecting malicious JavaScript code through the Content parameter within the teacher_message.php file. This code could be used to steal user cookies, redirect users to phishing sites, or deface the website. The remote nature of the vulnerability means an attacker doesn't need to be on the same network as the portal to exploit it. Successful exploitation could lead to unauthorized access to sensitive information and compromise the integrity of the online portal.

1. Reserved2024-01-02
2. Published2024-01-02
3. Modified2025-05-09
4. EPSS updated2026-04-02

The primary mitigation for CVE-2024-0189 is to immediately upgrade the RRJ Nueva Ecija Engineer Online Portal to version 1.0.1 or later. If upgrading is not immediately feasible, consider implementing input validation and output encoding on the Content parameter to sanitize user-supplied data. While not a complete solution, this can reduce the attack surface. Review and harden web application firewall (WAF) rules to detect and block XSS attempts targeting the teacher_message.php endpoint. After upgrading, verify the fix by attempting to inject a simple XSS payload (e.g., <script>alert(1)</script>) through the Content parameter and confirming that it is properly sanitized or blocked.