CVE-2026-3944: University Management System SQLi Flaw

CVE-2026-3944 Overview

A SQL injection vulnerability has been identified in itsourcecode University Management System version 1.0. This vulnerability exists in the /att_add.php file, where improper handling of the Name parameter allows attackers to inject malicious SQL commands. The vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive database information.

Critical Impact

This SQL injection vulnerability enables remote attackers to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion within the University Management System.

Affected Products

• itsourcecode University Management System 1.0
• angeljudesuarez university_management_system

Discovery Timeline

• 2026-03-11 - CVE CVE-2026-3944 published to NVD
• 2026-03-12 - Last updated in NVD database

Technical Details for CVE-2026-3944

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) occurs due to improper neutralization of special elements used in SQL commands within the /att_add.php file. The Name parameter is directly incorporated into database queries without adequate input validation or parameterization. When user-supplied input is processed by this endpoint, an attacker can craft malicious input that escapes the intended query structure and executes arbitrary SQL commands.

The attack requires network access but no authentication or user interaction, making it relatively straightforward to exploit. The vulnerability has been publicly disclosed and proof-of-concept information is available, increasing the risk of exploitation in the wild.

Root Cause

The root cause is improper input validation and lack of parameterized queries in the attendance management functionality. The Name argument in /att_add.php is concatenated directly into SQL statements without sanitization, allowing SQL metacharacters to modify the query logic. This represents a classic injection flaw (CWE-74) where untrusted data is interpreted as code.

Attack Vector

The attack can be initiated remotely over the network. An attacker sends a specially crafted HTTP request to the /att_add.php endpoint with a malicious payload in the Name parameter. The vulnerable code processes this input and incorporates it into a SQL query, allowing the attacker to:

• Extract sensitive data from the database
• Bypass authentication mechanisms
• Modify or delete database records
• Potentially execute operating system commands depending on database configuration

The vulnerability allows manipulation of attendance records and potentially broader access to the university management database containing student, faculty, and administrative information.

Detection Methods for CVE-2026-3944

Indicators of Compromise

• Unusual SQL error messages in application logs from /att_add.php
• Anomalous database queries containing SQL keywords (UNION, SELECT, INSERT, DELETE, DROP) in the Name parameter
• Unexpected data access patterns or bulk data exports from the database
• Web application firewall logs showing blocked SQL injection attempts targeting the attendance endpoint

Detection Strategies

• Deploy web application firewall (WAF) rules to detect SQL injection patterns in HTTP requests to /att_add.php
• Implement database activity monitoring to identify unusual query patterns or unauthorized data access
• Enable detailed logging for the /att_add.php endpoint and monitor for suspicious input patterns
• Use intrusion detection systems with SQL injection signatures for network-level detection

Monitoring Recommendations

• Monitor web server access logs for requests to /att_add.php with encoded or suspicious characters
• Implement database query logging to track all queries originating from the application
• Set up alerting for database errors that may indicate injection attempts
• Review application error logs regularly for SQL syntax errors

How to Mitigate CVE-2026-3944

Immediate Actions Required

• Restrict network access to the University Management System to trusted IP addresses only
• Implement a web application firewall with SQL injection protection rules
• Disable or remove the /att_add.php file if not critical to operations until a patch is available
• Review and audit database accounts used by the application for least privilege compliance

Patch Information

No official vendor patch has been identified at this time. The vulnerability was disclosed via the GitHub Issue Tracker Entry and is tracked by VulDB #350354. Organizations using this software should contact the vendor or consider implementing workarounds until a patch becomes available.

Workarounds

• Implement server-side input validation to sanitize the Name parameter before database operations
• Use prepared statements or parameterized queries for all database interactions in /att_add.php
• Deploy a reverse proxy or WAF to filter malicious SQL injection payloads
• Consider isolating the database server and restricting its network exposure
• Implement network segmentation to limit the blast radius of a potential compromise

# Example WAF rule for ModSecurity to block SQL injection attempts
SecRule ARGS:Name "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection Attempt Detected in Name Parameter',\
    tag:'attack-sqli',\
    severity:'CRITICAL'"