CVE-2026-2018: School Management System SQLi Vulnerability

CVE-2026-2018 Overview

A SQL injection vulnerability has been identified in itsourcecode School Management System version 1.0. The flaw exists in the file /ramonsys/settings/controller.php where improper handling of the ID parameter allows attackers to inject malicious SQL commands. This vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive data stored in the application's database.

Critical Impact

Remote attackers can exploit this SQL injection flaw to manipulate database queries, potentially extracting sensitive student records, administrative credentials, and other confidential information from educational institutions using this system.

Affected Products

• itsourcecode School Management System 1.0

Discovery Timeline

• 2026-02-06 - CVE-2026-2018 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2018

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) stems from insufficient input validation in the School Management System's controller component. The affected endpoint at /ramonsys/settings/controller.php accepts user-supplied input through the ID parameter without proper sanitization. When this untrusted input is directly concatenated into SQL queries, attackers can break out of the intended query structure and execute arbitrary SQL commands against the underlying database.

The vulnerability is classified under both CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-89 (SQL Injection), indicating that the application fails to properly neutralize special characters that have meaning in SQL syntax.

Root Cause

The root cause is the direct use of user-supplied input in SQL queries without parameterized queries or prepared statements. The ID parameter value from HTTP requests is incorporated into database queries without escaping or validating that it contains only expected numeric values. This allows special SQL characters and commands to be interpreted as part of the query structure rather than as literal data.

Attack Vector

The attack can be initiated remotely over the network. An attacker sends a crafted HTTP request to the vulnerable endpoint, manipulating the ID parameter to include SQL injection payloads. Since no authentication is required and user interaction is not needed, the attack surface is significant. Successful exploitation could allow attackers to read arbitrary database contents, modify or delete data, or potentially escalate to command execution depending on database configuration.

The vulnerability has been publicly disclosed and exploit information has been published, making it accessible to potential attackers. Technical details are available through the GitHub Issue CVE-36 and VulDB #344600 references.

Detection Methods for CVE-2026-2018

Indicators of Compromise

• HTTP requests to /ramonsys/settings/controller.php containing SQL metacharacters such as single quotes, double dashes, or UNION keywords in the ID parameter
• Database error messages in application logs indicating malformed SQL queries
• Unusual database query patterns or access to tables not typically accessed by the application
• Web server logs showing suspicious patterns of requests targeting the settings controller endpoint

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in request parameters
• Implement database activity monitoring to identify anomalous query patterns or unauthorized data access attempts
• Configure intrusion detection systems to alert on HTTP requests containing SQL injection signatures targeting the vulnerable endpoint
• Review web server access logs for repeated requests to /ramonsys/settings/controller.php with varying payloads

Monitoring Recommendations

• Enable detailed logging for the School Management System application and associated database
• Monitor for error-based SQL injection attempts through analysis of application error logs
• Set up alerts for database queries that deviate from normal application behavior patterns
• Track access patterns to sensitive tables containing student and administrative data

How to Mitigate CVE-2026-2018

Immediate Actions Required

• Restrict network access to the School Management System to trusted IP addresses only until a patch is available
• Implement Web Application Firewall rules to filter SQL injection attempts targeting the ID parameter
• Review database user permissions and apply principle of least privilege to limit potential impact
• Disable or restrict access to the /ramonsys/settings/controller.php endpoint if not critical for operations

Patch Information

At the time of this publication, no official patch has been released by itsourcecode for this vulnerability. Organizations should monitor the itsourcecode website for security updates and patch releases. In the absence of an official fix, implementing the workarounds below is strongly recommended.

Workarounds

• Implement input validation at the application level to ensure the ID parameter contains only numeric values
• Deploy a reverse proxy or WAF with SQL injection detection capabilities in front of the application
• Apply database-level restrictions to limit the queries the application account can execute
• Consider taking the application offline if it processes sensitive data and cannot be adequately protected through other means
• If source code access is available, modify the vulnerable code to use parameterized queries or prepared statements

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:ID "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt Detected in ID Parameter'"