CVE-2026-1590: School Management System SQLi Vulnerability

CVE-2026-1590 Overview

A SQL injection vulnerability has been identified in itsourcecode School Management System version 1.0. The vulnerability exists in the /ramonsys/faculty/index.php file, where improper handling of the ID argument allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to the database and compromising sensitive educational data.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete sensitive data from the School Management System database, including student records, faculty information, and administrative credentials.

Affected Products

• itsourcecode School Management System 1.0
• Web applications using the vulnerable /ramonsys/faculty/index.php endpoint

Discovery Timeline

• 2026-01-29 - CVE CVE-2026-1590 published to NVD
• 2026-01-29 - Last updated in NVD database

Technical Details for CVE-2026-1590

Vulnerability Analysis

This SQL injection vulnerability (classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) occurs in the faculty management component of the School Management System. The vulnerable endpoint /ramonsys/faculty/index.php fails to properly sanitize user-supplied input through the ID parameter before incorporating it into SQL queries.

When a request is made to this endpoint, the application directly concatenates user input into database queries without implementing proper parameterized queries or input validation. This architectural flaw allows attackers to manipulate the query structure by injecting specially crafted SQL syntax through the ID parameter.

The vulnerability is accessible over the network and requires no authentication or user interaction to exploit. An exploit is publicly available, increasing the likelihood of active exploitation attempts against vulnerable installations.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the /ramonsys/faculty/index.php file. The application directly uses user-supplied ID values in SQL statements without proper sanitization, escaping, or the use of prepared statements. This represents a fundamental secure coding failure that allows SQL injection attacks.

Attack Vector

The attack vector for CVE-2026-1590 is network-based, allowing remote exploitation. An attacker can craft malicious HTTP requests to the /ramonsys/faculty/index.php endpoint with SQL injection payloads in the ID parameter. Since no authentication is required, any attacker with network access to the vulnerable application can attempt exploitation.

A typical attack scenario involves manipulating the ID parameter to include SQL syntax that alters the intended query behavior. For example, an attacker might append UNION SELECT statements to extract data from other database tables, or inject time-based blind SQL injection payloads to enumerate database contents when direct output is not available.

Technical details and proof-of-concept information are available through the VulDB entry #343353 and VulDB submission #740687.

Detection Methods for CVE-2026-1590

Indicators of Compromise

• Unusual SQL error messages appearing in web server logs from requests to /ramonsys/faculty/index.php
• HTTP requests containing SQL keywords (UNION, SELECT, INSERT, UPDATE, DELETE, OR, AND) in the ID parameter
• Abnormal database query patterns or unexpected database load spikes
• Evidence of data exfiltration or unauthorized database access attempts

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the ID parameter
• Implement application-layer monitoring to identify requests with suspicious SQL syntax in URL parameters
• Enable database query logging and set alerts for anomalous query structures or failed authentication attempts
• Configure intrusion detection systems (IDS) to flag requests containing common SQL injection payloads

Monitoring Recommendations

• Review web server access logs for requests to /ramonsys/faculty/index.php with malformed or suspicious ID values
• Monitor database audit logs for unauthorized SELECT operations or unusual data access patterns
• Implement real-time alerting for SQL syntax detected in application input fields
• Track failed SQL query executions that may indicate injection attempt probing

How to Mitigate CVE-2026-1590

Immediate Actions Required

• Restrict network access to the School Management System to trusted IP addresses only until a patch is applied
• Implement input validation and parameterized queries for the ID parameter in /ramonsys/faculty/index.php
• Deploy WAF rules to block SQL injection attempts targeting the vulnerable endpoint
• Audit database access logs for evidence of prior exploitation attempts

Patch Information

No official vendor patch information is currently available. Organizations using itsourcecode School Management System 1.0 should contact the vendor through IT Source Code for remediation guidance or apply manual code fixes to implement prepared statements for database queries.

Workarounds

• Implement prepared statements or parameterized queries to handle the ID parameter securely
• Add server-side input validation to reject non-numeric or malformed ID values
• Deploy a reverse proxy with SQL injection filtering capabilities in front of the application
• Restrict database user privileges to limit the impact of successful SQL injection attacks

# Example: Block suspicious requests at the web server level (Apache)
# Add to .htaccess or Apache configuration
RewriteEngine On
RewriteCond %{QUERY_STRING} (union|select|insert|update|delete|drop|;|--) [NC]
RewriteRule ^ramonsys/faculty/index\.php$ - [F,L]