CVE-2026-2190: School Management System SQLi Vulnerability

CVE-2026-2190 Overview

A SQL injection vulnerability has been discovered in itsourcecode School Management System version 1.0. This security flaw affects the /ramonsys/user/controller.php file, where improper handling of the ID parameter allows attackers to inject malicious SQL queries. The vulnerability can be exploited remotely without authentication, potentially enabling unauthorized access to sensitive database contents including student records, administrative credentials, and other educational data stored within the system.

Critical Impact

This SQL injection vulnerability allows remote attackers to manipulate database queries through the ID parameter, potentially exposing sensitive student and administrative data. A public exploit is available, increasing the risk of active exploitation.

Affected Products

• itsourcecode School Management System 1.0

Discovery Timeline

• 2026-02-08 - CVE-2026-2190 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2190

Vulnerability Analysis

This SQL injection vulnerability exists in the School Management System's user controller component. The application fails to properly sanitize user-supplied input for the ID parameter before incorporating it into SQL queries. When a request is made to /ramonsys/user/controller.php, the ID parameter value is directly concatenated or interpolated into database queries without adequate validation or parameterization.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). This dual classification indicates that the input validation failure enables injection attacks that can compromise database integrity.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries in the controller.php file. The application directly uses user-controlled input from the ID parameter in SQL statements without proper sanitization, escaping, or the use of prepared statements. This allows attackers to break out of the intended query structure and inject arbitrary SQL commands.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests to the vulnerable endpoint /ramonsys/user/controller.php with specially crafted ID parameter values containing SQL injection payloads. These payloads can be designed to:

• Extract sensitive data from the database using UNION-based or error-based injection techniques
• Bypass authentication mechanisms
• Modify or delete database records
• Potentially escalate to remote code execution depending on database configuration and privileges

The vulnerability details have been publicly disclosed through a GitHub CVE Issue Discussion, and additional technical information is available through VulDB #344893.

Detection Methods for CVE-2026-2190

Indicators of Compromise

• Unusual SQL error messages in application logs from the /ramonsys/user/controller.php endpoint
• HTTP requests to /ramonsys/user/controller.php containing SQL keywords like UNION, SELECT, INSERT, DROP, or -- in the ID parameter
• Unexpected database queries or access patterns in database audit logs
• Failed authentication attempts followed by successful logins without valid credentials

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the ID parameter
• Configure IDS/IPS signatures to monitor for SQL injection attack patterns in requests to the School Management System
• Enable detailed logging on the web server and database to capture suspicious query attempts
• Deploy application security monitoring to detect anomalous request patterns to /ramonsys/user/controller.php

Monitoring Recommendations

• Monitor HTTP request logs for requests to /ramonsys/user/controller.php with suspicious characters or SQL syntax in the ID parameter
• Set up alerts for database errors or unexpected query execution patterns
• Implement real-time monitoring of database access to detect unauthorized data extraction attempts

How to Mitigate CVE-2026-2190

Immediate Actions Required

• Restrict network access to the School Management System to trusted IP addresses only until patched
• Implement input validation at the web server or WAF level to block SQL injection patterns in the ID parameter
• Consider taking the application offline if it contains highly sensitive student data and cannot be adequately protected
• Review database logs for signs of prior exploitation

Patch Information

At the time of publication, no official patch has been released by itsourcecode. Organizations should monitor the IT Source Code website for security updates. In the absence of an official patch, implementing the workarounds below is strongly recommended.

Workarounds

• Deploy a Web Application Firewall (WAF) with SQL injection protection rules enabled for the application
• Implement server-side input validation to whitelist only numeric values for the ID parameter
• If source code access is available, modify controller.php to use prepared statements with parameterized queries
• Restrict database user privileges to minimum required permissions to limit impact of successful exploitation

# Example WAF rule for ModSecurity to block SQL injection in ID parameter
SecRule ARGS:ID "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in ID parameter',\
    log,\
    auditlog"