CVE-2026-2865: Agri-Trading System SQL Injection Flaw

CVE-2026-2865 Overview

A SQL injection vulnerability has been identified in the itsourcecode Agri-Trading Online Shopping System version 1.0. This vulnerability affects the HTTP POST Request Handler component, specifically within the admin/productcontroller.php file. By manipulating the Product argument, an unauthenticated attacker can inject arbitrary SQL commands and potentially compromise the underlying database. The vulnerability can be exploited remotely, and exploit details have been publicly disclosed, increasing the risk of active exploitation.

Critical Impact

Remote SQL injection allowing unauthorized database access, data theft, and potential system compromise via the administrative product controller endpoint.

Affected Products

• Adonesevangelista Agri-Trading Online Shopping System version 1.0

Discovery Timeline

• 2026-02-21 - CVE-2026-2865 published to NVD
• 2026-02-26 - Last updated in NVD database

Technical Details for CVE-2026-2865

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists due to improper input validation in the admin/productcontroller.php file of the Agri-Trading Online Shopping System. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries. When processing HTTP POST requests, the Product parameter is directly concatenated or interpolated into database queries without adequate escaping or parameterization, enabling attackers to inject malicious SQL statements.

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 sanitization practices.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and sanitization in the HTTP POST request handler. The application directly uses user-controlled input from the Product parameter in SQL queries without implementing prepared statements, parameterized queries, or appropriate escaping mechanisms. This coding practice allows attackers to break out of the intended SQL query context and execute arbitrary database commands.

Attack Vector

The attack is network-accessible and requires no authentication or user interaction. An attacker can craft a malicious HTTP POST request targeting the admin/productcontroller.php endpoint with a specially crafted Product parameter containing SQL injection payloads. Successful exploitation could allow the attacker to:

• Extract sensitive data from the database including user credentials
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially achieve command execution on the underlying server depending on database configuration

The vulnerability can be exploited by sending malicious POST requests with SQL injection payloads in the Product parameter. Attackers can use techniques such as UNION-based injection, error-based injection, or time-based blind injection to extract data or manipulate the database. For detailed technical information, refer to the GitHub Issue Tracker and VulDB #347104.

Detection Methods for CVE-2026-2865

Indicators of Compromise

• Unusual SQL error messages in application logs related to productcontroller.php
• HTTP POST requests to /admin/productcontroller.php containing SQL metacharacters such as single quotes, double dashes, or UNION keywords
• Unexpected database queries or query patterns originating from the web application
• Anomalous data extraction or bulk read operations from the database

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the Product parameter
• Implement intrusion detection system (IDS) signatures for common SQL injection payloads in HTTP POST requests
• Monitor application and database logs for SQL syntax errors or unusual query patterns
• Enable detailed logging for the admin/productcontroller.php endpoint to capture suspicious requests

Monitoring Recommendations

• Review web server access logs for requests to /admin/productcontroller.php with abnormal parameter values
• Monitor database query logs for injection indicators such as UNION SELECT, OR 1=1, and comment sequences
• Set up alerts for multiple failed database queries that may indicate injection attempts
• Audit database access patterns for unauthorized data extraction activities

How to Mitigate CVE-2026-2865

Immediate Actions Required

• Restrict access to the /admin/ directory using IP whitelisting or VPN-only access
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Disable or remove the vulnerable productcontroller.php file if not immediately required
• Review application logs for any signs of prior exploitation attempts

Patch Information

No official vendor patch has been released at this time. The vulnerability has been publicly disclosed via the GitHub Issue Tracker. Organizations using this software should contact the vendor or consider implementing the workarounds below until an official fix is available. Additional technical details are available at VulDB CTI #347104.

Workarounds

• Implement input validation to reject SQL metacharacters in the Product parameter
• Modify the vulnerable code to use prepared statements with parameterized queries
• Apply network-level access controls to restrict access to administrative endpoints
• Consider deploying a reverse proxy with SQL injection filtering capabilities

# Example: Restrict access to admin directory via .htaccess
# Add to /admin/.htaccess
<Files "productcontroller.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>