CVE-2026-4783: College Management System SQL Injection

CVE-2026-4783 Overview

A SQL injection vulnerability has been identified in itsourcecode College Management System version 1.0. The vulnerability exists in the /admin/add-single-student-results.php file within the Parameter Handler component. Attackers can exploit this flaw by manipulating the course_code argument to inject malicious SQL queries, potentially compromising the underlying database and gaining unauthorized access to sensitive student and administrative data.

Critical Impact

Remote attackers with low privileges can exploit this SQL injection vulnerability to extract, modify, or delete sensitive educational records and potentially gain broader system access through database manipulation techniques.

Affected Products

• itsourcecode College Management System 1.0
• Parameter Handler component in /admin/add-single-student-results.php

Discovery Timeline

• 2026-03-25 - CVE-2026-4783 published to NVD
• 2026-03-25 - Last updated in NVD database

Technical Details for CVE-2026-4783

Vulnerability Analysis

This SQL injection vulnerability resides in the student results management functionality of the College Management System. The course_code parameter in the /admin/add-single-student-results.php endpoint fails to properly sanitize user-supplied input before incorporating it into SQL queries. This lack of input validation allows authenticated users with administrative access to inject arbitrary SQL commands that are executed by the database server.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where untrusted data is not properly neutralized before being used in a sensitive context. In this case, the course code parameter is directly concatenated or interpolated into database queries without adequate escaping or parameterization.

Root Cause

The root cause of this vulnerability is insufficient input validation and the absence of parameterized queries (prepared statements) in the PHP code handling the course_code parameter. The application directly uses user input in SQL query construction, allowing special SQL characters and syntax to alter the intended query logic.

Attack Vector

The attack can be initiated remotely over the network by authenticated users. An attacker with valid credentials to the administrative panel can submit a crafted course_code value containing SQL metacharacters and commands. The malicious payload is processed by the server and executed against the database, enabling data extraction via UNION-based or blind SQL injection techniques.

The vulnerability has been publicly disclosed, and exploit details are available through the GitHub Issue Report. Attackers can leverage standard SQL injection payloads to enumerate database schemas, extract user credentials, modify academic records, or potentially escalate privileges within the application.

Detection Methods for CVE-2026-4783

Indicators of Compromise

• Unusual or malformed values in the course_code parameter containing SQL keywords such as UNION, SELECT, DROP, or comment sequences (--, /*)
• Database error messages appearing in web application responses indicating query syntax errors
• Unexpected database queries logged in database server audit logs
• Anomalous access patterns to the /admin/add-single-student-results.php endpoint

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP request parameters
• Enable detailed logging on the web server for the administrative endpoints and monitor for suspicious parameter values
• Implement database query logging and alerting for queries containing injection signatures or unexpected data access patterns
• Use runtime application self-protection (RASP) solutions to detect SQL injection attempts at the application layer

Monitoring Recommendations

• Monitor web server access logs for repeated requests to /admin/add-single-student-results.php with varying course_code values
• Configure database monitoring to alert on unusual query patterns, error rates, or unauthorized data access attempts
• Set up intrusion detection system (IDS) signatures for SQL injection payloads targeting PHP applications
• Review authentication logs for suspicious administrative account activity that may indicate credential compromise

How to Mitigate CVE-2026-4783

Immediate Actions Required

• Restrict access to the administrative panel to trusted IP addresses or VPN connections only
• Implement additional authentication controls for the affected endpoint until a patch is available
• Deploy WAF rules to filter malicious input to the course_code parameter
• Review database accounts used by the application and apply the principle of least privilege

Patch Information

No vendor patch is currently available for this vulnerability. The exploit has been publicly disclosed through VulDB #352800. Organizations using itsourcecode College Management System 1.0 should contact the vendor at ItSourceCode for remediation guidance or consider implementing the workarounds described below.

Workarounds

• Implement server-side input validation to restrict the course_code parameter to expected alphanumeric patterns only
• Modify the vulnerable PHP code to use prepared statements with parameterized queries instead of direct string concatenation
• Deploy a reverse proxy or WAF with SQL injection detection rules in front of the application
• Consider taking the affected endpoint offline until proper remediation can be implemented
• Conduct a security audit of other parameters and endpoints in the application for similar injection vulnerabilities

# Example WAF rule to block SQL injection in course_code parameter
# For ModSecurity-compatible WAF
SecRule ARGS:course_code "@detectSQLi" \
    "id:100001,\
    phase:2,\
    block,\
    msg:'SQL Injection attempt detected in course_code parameter',\
    logdata:'Matched Data: %{MATCHED_VAR}',\
    severity:'CRITICAL'"