CVE-2026-3486: College Management System SQL Injection Flaw

CVE-2026-3486 Overview

A SQL Injection vulnerability has been identified in itsourcecode College Management System version 1.0. This vulnerability affects the /admin/student-fee.php file, where improper handling of the roll_no parameter allows attackers to inject malicious SQL queries. The vulnerability can be exploited remotely by authenticated administrators, potentially allowing unauthorized access to sensitive database information, data manipulation, or data exfiltration.

Critical Impact

Attackers with administrative access can exploit this SQL Injection vulnerability to extract, modify, or delete sensitive student and financial records from the database, compromising the confidentiality, integrity, and availability of the college management system.

Affected Products

• Angeljudesuarez College Management System version 1.0
• itsourcecode College Management System deployments using /admin/student-fee.php
• PHP-based college fee management implementations with vulnerable roll_no parameter handling

Discovery Timeline

• 2026-03-03 - CVE-2026-3486 published to NVD
• 2026-03-04 - Last updated in NVD database

Technical Details for CVE-2026-3486

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89) with an underlying Injection flaw (CWE-74). The vulnerability resides in the student fee management functionality within the administrative panel of the College Management System. When processing fee-related queries, the application fails to properly sanitize user-supplied input in the roll_no parameter before incorporating it into SQL queries.

The exploit has been publicly disclosed, increasing the risk of widespread exploitation against vulnerable installations. While the vulnerability requires high privileges (administrative access) to exploit, the network-accessible nature of the attack surface means any internet-facing deployment is potentially at risk.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries or prepared statements when processing the roll_no argument in /admin/student-fee.php. The application directly concatenates user input into SQL statements without proper sanitization or escaping, allowing attackers to break out of the intended query structure and inject arbitrary SQL commands.

This is a common vulnerability pattern in legacy PHP applications where user input is directly embedded into database queries rather than using modern secure coding practices like PDO prepared statements or mysqli parameterized queries.

Attack Vector

The attack is conducted remotely over the network against the administrative interface. An attacker with valid administrative credentials can manipulate the roll_no parameter in HTTP requests to the /admin/student-fee.php endpoint. By injecting specially crafted SQL syntax, the attacker can alter the query logic to extract data from other tables, bypass authentication checks, modify records, or potentially execute database administrative commands depending on the database configuration and privileges.

The vulnerability exploitation involves submitting malicious input through the roll_no parameter that modifies the intended SQL query behavior. For example, by appending SQL operators and additional query clauses, an attacker can cause the database to return unauthorized data or execute unintended operations. Technical details and proof-of-concept information can be found in the GitHub Issue Discussion and VulDB #348561.

Detection Methods for CVE-2026-3486

Indicators of Compromise

• Unusual SQL error messages in web application logs from /admin/student-fee.php
• HTTP requests to /admin/student-fee.php containing SQL syntax characters in the roll_no parameter (e.g., single quotes, UNION, SELECT, OR, AND, --)
• Database query logs showing unexpected queries originating from the student fee management functionality
• Anomalous data access patterns indicating bulk data extraction from student or financial tables

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in requests to /admin/student-fee.php
• Enable detailed logging for database queries and monitor for SQL injection signatures such as UNION-based or boolean-based injection attempts
• Deploy intrusion detection system (IDS) rules that flag requests containing common SQL injection payloads targeting the roll_no parameter
• Utilize SentinelOne Singularity platform to monitor for suspicious database access patterns and anomalous administrative activity

Monitoring Recommendations

• Configure alerts for failed SQL queries or database errors generated by the College Management System
• Monitor authentication logs for administrative accounts accessing the vulnerable endpoint
• Implement database activity monitoring to detect unauthorized data access or modification attempts
• Review web server access logs regularly for requests to /admin/student-fee.php with suspicious query string patterns

How to Mitigate CVE-2026-3486

Immediate Actions Required

• Restrict access to the /admin/student-fee.php endpoint to trusted IP addresses only using firewall rules or web server configuration
• Implement a Web Application Firewall (WAF) with SQL injection protection rules in front of the application
• Review and audit all administrative account access to identify any potential exploitation
• Consider taking the vulnerable application offline until a patch can be applied

Patch Information

No official vendor patch has been released for this vulnerability at the time of publication. Users should monitor the IT Source Code website for security updates. Given the open-source nature of this software, organizations may need to implement code-level fixes themselves or engage with the community for remediation guidance.

Organizations using this software should review the VulDB advisory for the latest information on available patches or workarounds.

Workarounds

• Modify the source code in /admin/student-fee.php to use prepared statements with parameterized queries instead of string concatenation for the roll_no input
• Implement server-side input validation to restrict the roll_no parameter to expected formats (e.g., alphanumeric characters only)
• Deploy a reverse proxy or WAF solution configured to sanitize or reject requests containing SQL injection patterns
• Limit database user privileges for the application to only those strictly necessary, preventing escalation if the vulnerability is exploited

# Example Apache configuration to restrict access to admin directory
<Directory "/var/www/html/admin">
    # Allow only trusted IP addresses
    Require ip 192.168.1.0/24 10.0.0.0/8
    
    # Enable mod_security rules for SQL injection protection
    SecRuleEngine On
    SecRule ARGS "@detectSQLi" "id:1001,deny,status:403,log,msg:'SQL Injection Detected'"
</Directory>