CVE-2026-4471: Online Frozen Foods Ordering SQL Injection

CVE-2026-4471 Overview

A SQL Injection vulnerability has been identified in itsourcecode Online Frozen Foods Ordering System version 1.0. This vulnerability affects the file /admin/admin_edit_employee.php, where manipulation of the First_Name argument can lead to SQL injection attacks. The vulnerability is remotely exploitable, and exploit details have been made publicly available, increasing the risk of active exploitation.

Critical Impact

Remote attackers with administrative access can exploit this SQL injection vulnerability to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion of sensitive information stored in the application database.

Affected Products

• Adonesevangelista Online Frozen Foods Ordering System 1.0
• itsourcecode Online Frozen Foods Ordering System 1.0

Discovery Timeline

• 2026-03-20 - CVE-2026-4471 published to NVD
• 2026-03-23 - Last updated in NVD database

Technical Details for CVE-2026-4471

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in the administrative interface of the Online Frozen Foods Ordering System. The vulnerable endpoint /admin/admin_edit_employee.php fails to properly sanitize user-supplied input in the First_Name parameter before incorporating it into SQL queries. This improper input handling allows attackers to inject malicious SQL statements that are executed by the database server.

The vulnerability is classified under both CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), indicating a fundamental failure in input validation and output encoding practices.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the /admin/admin_edit_employee.php file. The First_Name parameter is directly concatenated into SQL queries without proper sanitization or escaping, allowing special SQL characters to alter the intended query structure. This is a classic example of failing to separate data from code in database operations.

Attack Vector

The attack can be launched remotely over the network by an authenticated administrative user. An attacker with access to the admin panel can manipulate the First_Name field when editing employee records. By crafting malicious input containing SQL metacharacters and commands, the attacker can:

• Extract sensitive data from the database through UNION-based or error-based injection techniques
• Modify or delete existing database records
• Bypass authentication mechanisms if the injection point affects login queries
• Potentially escalate privileges within the application

The exploitation requires administrative credentials, which somewhat limits the attack surface but still presents significant risk if admin accounts are compromised or if the application has weak authentication controls.

Detection Methods for CVE-2026-4471

Indicators of Compromise

• Unusual or malformed HTTP requests to /admin/admin_edit_employee.php containing SQL syntax in the First_Name parameter
• Database error messages appearing in application logs or responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Anomalous data modifications in employee records or related tables

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP request parameters targeting the admin interface
• Monitor application logs for requests containing common SQL injection payloads such as single quotes, UNION statements, or comment sequences
• Enable database query logging and alert on queries with unexpected patterns or syntax originating from the web application
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable verbose logging for all administrative actions within the Online Frozen Foods Ordering System
• Implement real-time alerting for multiple failed or suspicious requests to administrative endpoints
• Monitor database connections for unusual query patterns or excessive data retrieval operations
• Review access logs for the /admin/admin_edit_employee.php endpoint regularly for anomalous activity

How to Mitigate CVE-2026-4471

Immediate Actions Required

• Restrict access to the administrative interface to trusted IP addresses only until a patch is applied
• Implement input validation at the application level to filter out SQL metacharacters from the First_Name parameter
• Deploy a Web Application Firewall with SQL injection protection enabled for the affected endpoint
• Review and audit administrative user accounts to ensure only authorized personnel have access

Patch Information

No official patch has been released by the vendor at the time of this publication. Organizations using this software should monitor the GitHub Issue Discussion for updates and consider implementing the workarounds below. Additional technical details are available through VulDB #351761.

Workarounds

• Modify the vulnerable PHP code to use prepared statements with parameterized queries instead of string concatenation for SQL queries
• Implement server-side input validation to whitelist acceptable characters for the First_Name field
• Apply the principle of least privilege to database accounts used by the application
• Consider temporarily disabling the employee edit functionality if it is not critical to business operations

# Example: Restrict access to admin directory via .htaccess
# Add to /admin/.htaccess file
<Files "admin_edit_employee.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    # Replace with your trusted IP range
</Files>