CVE-2025-6472: Online Bidding System SQLi Vulnerability

CVE-2025-6472 Overview

A critical SQL injection vulnerability has been discovered in code-projects Online Bidding System version 1.0. The vulnerability exists in the /showprod.php file, where improper handling of the ID parameter allows attackers to inject malicious SQL statements. This flaw can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive database contents, data manipulation, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive data from the database, modify or delete records, and potentially gain further access to the underlying system.

Affected Products

• Fabian Online Bidding System 1.0
• code-projects Online Bidding System 1.0

Discovery Timeline

• 2025-06-22 - CVE-2025-6472 published to NVD
• 2025-06-27 - Last updated in NVD database

Technical Details for CVE-2025-6472

Vulnerability Analysis

This SQL injection vulnerability resides in the /showprod.php file of the Online Bidding System. The application fails to properly sanitize user-supplied input passed through the ID parameter before incorporating it into SQL queries. This allows attackers to manipulate database queries by injecting arbitrary SQL code through the vulnerable parameter.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection flaws where untrusted input is not properly neutralized before being used in a sensitive context.

Root Cause

The root cause of this vulnerability is insufficient input validation and lack of parameterized queries or prepared statements in the /showprod.php file. The application directly concatenates user-controlled input from the ID parameter into SQL queries without proper sanitization or escaping, creating a classic SQL injection attack surface.

Attack Vector

The attack can be launched remotely over the network without requiring authentication. An attacker can craft malicious HTTP requests to the /showprod.php endpoint with specially crafted ID parameter values containing SQL injection payloads. The exploit has been publicly disclosed, making it accessible to a wide range of threat actors.

For example, an attacker could manipulate the ID parameter to include SQL syntax that modifies the intended query logic, potentially extracting usernames and passwords, accessing administrative functions, or dumping entire database tables. The network-based attack vector with no required privileges makes this vulnerability particularly accessible to attackers.

Technical details and proof-of-concept information can be found in the GitHub CVE Issue #10 and VulDB #313580.

Detection Methods for CVE-2025-6472

Indicators of Compromise

• Unusual SQL error messages in web server logs or application responses from /showprod.php
• HTTP requests to /showprod.php containing SQL keywords such as UNION, SELECT, DROP, or -- in the ID parameter
• Unexpected database queries or data extraction patterns in database audit logs
• Anomalous access patterns to the bidding system product display functionality

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the ID parameter
• Enable detailed logging for the /showprod.php endpoint and monitor for malicious input patterns
• Deploy database activity monitoring to detect unusual query patterns or data exfiltration attempts
• Use intrusion detection systems (IDS) with SQL injection signature rules

Monitoring Recommendations

• Monitor web server access logs for requests to /showprod.php with suspicious ID parameter values
• Set up alerts for SQL syntax errors or database connection anomalies originating from the affected application
• Review database query logs for unexpected or malformed queries from the bidding system
• Implement real-time monitoring for data exfiltration indicators from the application database

How to Mitigate CVE-2025-6472

Immediate Actions Required

• Immediately restrict access to the /showprod.php file or take the Online Bidding System offline until a fix is applied
• Implement input validation to filter SQL injection characters and keywords from the ID parameter
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as a temporary mitigation
• Review database accounts used by the application and apply least privilege principles

Patch Information

As of the last NVD update on 2025-06-27, no official vendor patch has been released for this vulnerability. Organizations using Fabian Online Bidding System 1.0 should contact the vendor or check the Code Projects Resource Hub for security updates. In the absence of a vendor patch, implementing the recommended workarounds is critical.

Workarounds

• Modify the application code to use parameterized queries or prepared statements for all database interactions in /showprod.php
• Implement strict input validation that only allows numeric values for the ID parameter
• Deploy application-level firewall rules to block requests containing SQL injection payloads
• Consider isolating the application on a separate network segment with restricted database access

# Example WAF rule for blocking SQL injection attempts (ModSecurity)
SecRule ARGS:ID "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in ID parameter',\
    log,\
    auditlog"