CVE-2025-6303: Online Shoe Store SQLi Vulnerability

CVE-2025-6303 Overview

A SQL injection vulnerability has been discovered in Code-projects Online Shoe Store version 1.0. This vulnerability affects the /contactus1.php file, where improper handling of the Message argument allows attackers to inject malicious SQL queries. The vulnerability is remotely exploitable and has been publicly disclosed, making it a significant security concern for any deployments of this e-commerce application.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially compromise the underlying server through database command execution.

Affected Products

• Code-projects Online Shoe Store 1.0

Discovery Timeline

• 2025-06-20 - CVE-2025-6303 published to NVD
• 2025-06-26 - Last updated in NVD database

Technical Details for CVE-2025-6303

Vulnerability Analysis

This SQL injection vulnerability resides in the contact form processing functionality of the Online Shoe Store application. The Message parameter in /contactus1.php fails to properly sanitize user input before incorporating it into SQL queries, allowing attackers to manipulate database operations. The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly referred to as injection flaws.

The attack can be launched remotely without authentication, and exploitation details have been publicly disclosed. While the exploit has been made available to the public, the impact is characterized by limited confidentiality, integrity, and availability impacts to the vulnerable system.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and parameterized queries in the /contactus1.php file. When user-supplied data from the Message field is directly concatenated into SQL statements without sanitization or the use of prepared statements, it creates an injection point that attackers can exploit.

Attack Vector

The attack vector is network-based, requiring no user interaction or special privileges to exploit. An attacker can submit a specially crafted payload through the contact form's Message field that breaks out of the intended SQL query context. This allows the execution of arbitrary SQL commands against the backend database.

The vulnerability allows attackers to send malicious input through the Message parameter in the /contactus1.php endpoint. When the application processes this input without proper sanitization, the injected SQL commands are executed by the database server. Typical exploitation involves using SQL metacharacters such as single quotes, semicolons, and UNION statements to extract data or modify database contents. For detailed technical analysis, refer to the GitHub CVE Issue Discussion.

Detection Methods for CVE-2025-6303

Indicators of Compromise

• Unusual database queries containing SQL keywords (UNION, SELECT, INSERT, DROP) in web application logs for /contactus1.php
• Error messages in application logs indicating SQL syntax errors or unexpected database responses
• Anomalous traffic patterns to the /contactus1.php endpoint with encoded or special characters in the Message parameter
• Evidence of data exfiltration or unauthorized database access in database audit logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the Message parameter
• Deploy database activity monitoring to identify suspicious query patterns originating from the web application
• Configure intrusion detection systems (IDS) to alert on common SQL injection payloads in HTTP POST requests

Monitoring Recommendations

• Enable detailed logging for all requests to /contactus1.php and review for injection attempts
• Monitor database query logs for anomalous patterns such as UNION-based attacks or time-based blind SQL injection
• Set up alerts for failed SQL queries or database errors that may indicate exploitation attempts

How to Mitigate CVE-2025-6303

Immediate Actions Required

• Remove or disable the /contactus1.php functionality until a patch is available
• Implement input validation and sanitization for the Message parameter as a temporary measure
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Restrict database user privileges to limit the impact of potential exploitation

Patch Information

No official vendor patch is currently available for this vulnerability. Organizations using Code-projects Online Shoe Store 1.0 should implement the recommended workarounds immediately. For additional information, consult the VulDB entry #313303 and the Code Projects Resource Hub for any future updates.

Workarounds

• Implement parameterized queries or prepared statements in the /contactus1.php file to prevent SQL injection
• Apply input validation to reject or escape special characters in the Message parameter
• Use a Web Application Firewall configured with SQL injection detection rules
• Consider temporarily disabling the contact form functionality until the vulnerability can be properly remediated

# Example Apache ModSecurity rule to block SQL injection attempts
SecRule ARGS:Message "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in Message parameter',\
    log,\
    auditlog"