CVE-2026-3149: College Management System SQLi Vulnerability

CVE-2026-3149 Overview

A SQL Injection vulnerability has been identified in itsourcecode College Management System version 1.0. The vulnerability exists in the /admin/asign-single-student-subjects.php file, where the course_code parameter is not properly sanitized before being used in SQL queries. This allows remote authenticated attackers to manipulate database queries by injecting malicious SQL code through the vulnerable parameter, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers with low privileges can exploit this SQL Injection vulnerability to access, modify, or delete sensitive student and academic data stored in the College Management System database.

Affected Products

• itsourcecode College Management System 1.0
• angeljudesuarez college_management_system

Discovery Timeline

• 2026-02-25 - CVE-2026-3149 published to NVD
• 2026-02-25 - Last updated in NVD database

Technical Details for CVE-2026-3149

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89) and Improper Neutralization of Special Elements in Output Used by a Downstream Component (CWE-74). The vulnerable endpoint /admin/asign-single-student-subjects.php accepts user-supplied input through the course_code parameter without adequate input validation or sanitization. When this parameter is processed, the application constructs SQL queries by directly concatenating the user input, creating an injection point that attackers can exploit to manipulate the underlying database operations.

The attack requires network access and low-level privileges (authenticated user), but can be executed remotely without user interaction. The vulnerability has been publicly disclosed, and exploit information has been made available, increasing the risk of exploitation in the wild.

Root Cause

The root cause of this vulnerability is improper input validation and the use of unsanitized user input directly in SQL query construction. The application fails to implement parameterized queries or prepared statements when handling the course_code parameter, allowing special SQL characters and commands to be interpreted as part of the query rather than as literal data values.

Attack Vector

The attack can be executed remotely over the network by an authenticated attacker with low privileges. The attacker manipulates the course_code parameter in requests to /admin/asign-single-student-subjects.php, injecting SQL syntax that alters the intended query behavior. This could enable the attacker to:

• Extract sensitive information from the database (student records, grades, personal information)
• Modify or delete database records
• Bypass authentication or authorization checks
• Potentially escalate privileges within the application

The vulnerability is accessible through the admin interface, suggesting that attackers would need at least basic authenticated access to the system to exploit it. However, once exploited, the impact can extend to confidentiality, integrity, and availability of the data stored in the system.

Detection Methods for CVE-2026-3149

Indicators of Compromise

• Unusual or malformed requests to /admin/asign-single-student-subjects.php containing SQL syntax in the course_code parameter
• Database error messages appearing in application logs or responses indicating SQL syntax errors
• Unexpected database queries or query patterns in database audit logs
• Signs of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewalls (WAF) with SQL Injection detection rules targeting the affected endpoint
• Implement database activity monitoring to detect anomalous query patterns
• Review web server access logs for requests containing SQL injection payloads in the course_code parameter
• Enable verbose logging on the database server to capture and alert on suspicious queries

Monitoring Recommendations

• Monitor HTTP request logs for the /admin/asign-single-student-subjects.php endpoint with special attention to the course_code parameter
• Set up alerts for database errors or exceptions that may indicate SQL injection attempts
• Implement real-time security monitoring for web application traffic to identify injection attack patterns
• Review authentication logs for unusual login patterns that might indicate compromised accounts being used for exploitation

How to Mitigate CVE-2026-3149

Immediate Actions Required

• Restrict access to the affected /admin/asign-single-student-subjects.php endpoint to only trusted users or IP addresses
• Implement input validation to reject requests with suspicious SQL characters in the course_code parameter
• Deploy a Web Application Firewall with rules specifically targeting SQL injection patterns
• Consider temporarily disabling the affected functionality until a proper fix is implemented

Patch Information

At the time of this writing, no official vendor patch has been released for this vulnerability. Organizations using itsourcecode College Management System 1.0 should monitor the GitHub Issue Tracker and IT Source Code Resource for updates and patch availability. Additional technical details can be found in the VulDB entry #347657.

Workarounds

• Implement parameterized queries or prepared statements in the vulnerable PHP file to prevent SQL injection
• Add server-side input validation to sanitize the course_code parameter before use in database queries
• Use an allowlist approach to validate that course_code values conform to expected formats
• Deploy network segmentation to limit access to the application's admin interface
• Implement additional authentication controls for administrative functions

# Example: Apache .htaccess rule to restrict access to the vulnerable endpoint
<Files "asign-single-student-subjects.php">
    Order Deny,Allow
    Deny from all
    # Allow only trusted IP addresses
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>