CVE-2026-2189: School Management System SQLi Vulnerability

CVE-2026-2189 Overview

A SQL Injection vulnerability has been identified in itsourcecode School Management System version 1.0. This vulnerability affects an unknown function of the file /ramonsys/report/index.php. The manipulation of the argument ay leads to SQL injection, allowing attackers to execute arbitrary SQL commands against the backend database. The attack can be initiated remotely without authentication, and the exploit is publicly available, which increases the risk of active exploitation.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to access, modify, or delete sensitive educational data including student records, grades, and administrative information without authentication.

Affected Products

• itsourcecode School Management System 1.0

Discovery Timeline

• 2026-02-08 - CVE-2026-2189 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2189

Vulnerability Analysis

This SQL injection vulnerability exists in the reporting functionality of the School Management System. The vulnerable endpoint /ramonsys/report/index.php fails to properly sanitize user-supplied input in the ay parameter before incorporating it into SQL queries. This allows attackers to inject malicious SQL statements that are executed by the database server.

The vulnerability can be exploited remotely over the network without requiring any authentication or user interaction. Successful exploitation could lead to unauthorized access to the underlying database, potentially exposing sensitive student information, grades, financial records, and administrative credentials stored in the school management system.

Root Cause

The root cause of this vulnerability is improper input validation and the absence of parameterized queries in the /ramonsys/report/index.php file. The ay parameter (likely representing "academic year") is directly concatenated into SQL queries without proper sanitization or the use of prepared statements, enabling classic SQL injection attacks. This falls under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Attack Vector

The attack vector is network-based, meaning an attacker can exploit this vulnerability remotely over HTTP. The attacker crafts malicious input containing SQL metacharacters and submits it through the ay parameter to the vulnerable endpoint. The injected SQL commands are then executed by the database server with the same privileges as the application's database user.

The exploitation mechanism involves sending specially crafted HTTP requests to the /ramonsys/report/index.php endpoint with SQL injection payloads in the ay parameter. Common attack techniques include UNION-based injection to extract data, boolean-based blind injection for inference attacks, or time-based blind injection when direct output is not visible. Additional technical details are available in the GitHub CVE Issue Tracker and VulDB #344892.

Detection Methods for CVE-2026-2189

Indicators of Compromise

• Unusual database queries in application logs containing SQL keywords like UNION, SELECT, OR 1=1, or comment sequences (--, /**/)
• HTTP requests to /ramonsys/report/index.php with suspicious ay parameter values containing special characters
• Database error messages appearing in web server logs or exposed to users
• Unexpected data modifications or deletions in student or administrative tables

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the ay parameter
• Monitor web server access logs for requests to /ramonsys/report/index.php containing SQL injection signatures
• Enable database query logging and alert on anomalous query patterns or errors
• Deploy intrusion detection systems (IDS) with SQL injection signature rules

Monitoring Recommendations

• Enable verbose logging on the web application server to capture full request parameters
• Configure database audit logging to track all queries executed against sensitive tables
• Set up real-time alerting for failed login attempts or database errors that may indicate exploitation attempts
• Regularly review access logs for the vulnerable endpoint /ramonsys/report/index.php

How to Mitigate CVE-2026-2189

Immediate Actions Required

• Restrict access to the /ramonsys/report/index.php endpoint using network-level controls or authentication
• Implement input validation to reject malicious characters in the ay parameter
• Deploy a Web Application Firewall (WAF) with SQL injection protection enabled
• Consider taking the reporting functionality offline until a proper fix is implemented

Patch Information

At the time of publication, no official patch has been released by the vendor. Organizations using itsourcecode School Management System 1.0 should monitor the IT Source Code Blog for updates. In the absence of an official patch, implement the workarounds and mitigations described below.

Workarounds

• Implement prepared statements or parameterized queries in the vulnerable PHP file to prevent SQL injection
• Add server-side input validation to sanitize the ay parameter, allowing only expected formats (e.g., academic year format like "2025-2026")
• Restrict database user privileges to limit the impact of successful SQL injection attacks
• Deploy network segmentation to isolate the school management system from critical infrastructure

# Configuration example - Apache .htaccess to restrict access to vulnerable endpoint
<FilesMatch "index\.php$">
    <If "%{REQUEST_URI} =~ m#/ramonsys/report/#">
        Require ip 192.168.1.0/24
        # Or require valid authentication
        # AuthType Basic
        # AuthName "Restricted Access"
        # AuthUserFile /etc/apache2/.htpasswd
        # Require valid-user
    </If>
</FilesMatch>