CVE-2026-11334: SQL Injection in College Management System

Executive Summary

CVE-2026-11334 is a SQL injection vulnerability identified in the open-source CollegeManagementSystem project maintained by tittuvarghese on GitHub. The affected code path resides in dashboard_page/forms/fetch.php, where the department_code argument is passed directly into a database query without proper sanitization or parameterization.

CVSS Score: 7.3 (High)

Successful exploitation allows an attacker with access to the affected endpoint to manipulate SQL queries — potentially reading sensitive student and staff records, bypassing authentication, or modifying database content.

Vulnerability Overview

Affected Products

CollegeManagementSystem is an open-source PHP/MySQL web application designed to manage academic departments, student records, courses, and faculty information in educational institutions.

Technical Details

Vulnerability Root Cause

The vulnerability exists because the department_code parameter received via HTTP request is interpolated directly into a SQL query string without using parameterized queries or prepared statements:

// Vulnerable pattern (illustrative)
$dept = $_POST['department_code'];
$query = "SELECT * FROM departments WHERE department_code = '$dept'";
$result = mysqli_query($conn, $query);

An attacker can inject arbitrary SQL by crafting a malicious department_code value such as:

' OR '1'='1
' UNION SELECT username, password FROM users--
' DROP TABLE students--

Attack Vector

1. Attacker identifies the fetch.php endpoint (typically accessible to authenticated users with low privileges)
2. Submits a crafted department_code value containing SQL metacharacters
3. The injected SQL executes with the database user's privileges
4. Attacker extracts sensitive records (student PII, staff credentials, course data) or modifies database content

Impact Assessment

Recommendations

Immediate Mitigations

1. Switch to parameterized queries or prepared statements for all database interactions:

// Secure pattern using PDO
$stmt = $pdo->prepare("SELECT * FROM departments WHERE department_code = ?");
$stmt->execute([$_POST['department_code']]);

2. Restrict access to fetch.php — ensure the endpoint is only reachable by authenticated users with appropriate roles, using session validation at the top of the script

3. Apply input validation — reject department_code values containing SQL metacharacters (', ", ;, --, UNION, etc.) using an allowlist of expected formats (e.g., alphanumeric codes only)

4. Enable WAF rules — if a Web Application Firewall is in use, ensure SQL injection signatures are active for this application

5. Update to the latest commit — monitor the upstream repository for an official patch and apply it as soon as available

Database Hardening

- Use a dedicated low-privilege database user for the application (no DROP/ALTER privileges)
- Enable query logging to detect injection attempts in audit logs
- Hash passwords with bcrypt/argon2 — never MD5 or SHA1
- Consider encrypting sensitive columns (PII fields) at rest

Detection Indicators

Post-Remediation Checklist

1. Replace all string-interpolated queries with parameterized statements throughout the codebase
2. Audit all user-supplied inputs that reach any database query
3. Review database logs for evidence of prior exploitation (unusual SELECT patterns, error spikes)
4. Force password resets for all staff/admin accounts if credential hashes may have been exposed
5. Test with a SQL injection scanner (e.g., SQLMap in a safe environment) to verify the fix is effective

References

• NVD — CVE-2026-11334
• OWASP SQL Injection Prevention Cheat Sheet
• CWE-89: Improper Neutralization of Special Elements in SQL Commands