CVE-2026-26694: Simple Student Alumni System SQLi Flaw

CVE-2026-26694 Overview

A SQL Injection vulnerability has been identified in code-projects Simple Student Alumni System v1.0. The vulnerability exists in the /TracerStudy/modal_view.php endpoint, allowing unauthenticated attackers to inject malicious SQL queries. This weakness (CWE-89) can lead to unauthorized access to the underlying database, enabling attackers to read, modify, or delete sensitive data.

Critical Impact

This SQL Injection vulnerability allows unauthenticated remote attackers to compromise the database backend, potentially exposing student and alumni records, credentials, and other sensitive institutional data.

Affected Products

• Carmelo Simple Student Alumni System version 1.0
• /TracerStudy/modal_view.php endpoint

Discovery Timeline

• 2026-03-02 - CVE-2026-26694 published to NVD
• 2026-03-03 - Last updated in NVD database

Technical Details for CVE-2026-26694

Vulnerability Analysis

This SQL Injection vulnerability affects the modal_view.php file within the TracerStudy module of the Simple Student Alumni System. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries, allowing attackers to manipulate database operations. Given the network-accessible nature of this web application and the lack of authentication requirements for exploitation, an attacker can remotely compromise the database without any prior access or user interaction.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries in the /TracerStudy/modal_view.php endpoint. User-controlled input is directly concatenated into SQL statements without proper sanitization or the use of prepared statements, enabling SQL Injection attacks.

Attack Vector

The vulnerability is exploitable over the network by sending crafted HTTP requests to the /TracerStudy/modal_view.php endpoint. An attacker can inject malicious SQL statements through vulnerable parameters, allowing them to bypass authentication, extract database contents, modify records, or potentially gain further access to the underlying system. The attack requires no authentication and no user interaction, making it highly accessible to remote attackers.

The vulnerability manifests in the modal_view.php file where user input is processed without proper sanitization. For detailed technical information, refer to the GitHub vulnerability report.

Detection Methods for CVE-2026-26694

Indicators of Compromise

• Unusual database query patterns or errors in application logs
• Unexpected access to /TracerStudy/modal_view.php with abnormal parameters
• Database audit logs showing unauthorized SELECT, UPDATE, INSERT, or DELETE operations
• Evidence of data exfiltration or unauthorized user account creation

Detection Strategies

• Deploy Web Application Firewalls (WAF) with SQL Injection detection rules targeting the TracerStudy module
• Implement database activity monitoring to detect anomalous query patterns
• Review HTTP access logs for requests to modal_view.php containing SQL syntax characters such as single quotes, semicolons, or UNION statements
• Enable verbose error logging to identify SQL syntax errors that may indicate injection attempts

Monitoring Recommendations

• Monitor database server logs for unusual query execution patterns
• Set up alerts for multiple failed database queries from web application processes
• Track HTTP requests to /TracerStudy/modal_view.php for suspicious parameter values
• Implement real-time monitoring for data access anomalies in student and alumni records

How to Mitigate CVE-2026-26694

Immediate Actions Required

• Restrict access to the /TracerStudy/modal_view.php endpoint until a patch is applied
• Deploy WAF rules to block common SQL Injection payloads targeting this application
• Review database access logs for any signs of compromise
• Consider taking the affected module offline if it is not critical to operations

Patch Information

No official vendor patch has been released at this time. Monitor the GitHub project documentation for updates and remediation guidance. Organizations using this software should consider implementing manual code fixes using prepared statements or parameterized queries.

Workarounds

• Implement input validation on all user-supplied parameters in modal_view.php
• Refactor vulnerable SQL queries to use prepared statements with parameterized inputs
• Deploy a Web Application Firewall (WAF) with SQL Injection detection rules
• Restrict network access to the application to trusted IP ranges only
• Apply principle of least privilege to database accounts used by the application

# Example: Restrict access to vulnerable endpoint using Apache .htaccess
<Files "modal_view.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</Files>