CVE-2025-2679: Bank Locker Management System SQLi Flaw

CVE-2025-2679 Overview

A SQL Injection vulnerability has been identified in PHPGurukul Bank Locker Management System version 1.0. The vulnerability exists in the /contact-us.php file where the pagetitle argument is not properly sanitized before being used in SQL queries. This flaw allows remote attackers to inject malicious SQL statements, potentially leading to unauthorized data access, data manipulation, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive banking and customer information, modify database records, or potentially gain unauthorized access to the underlying system without authentication.

Affected Products

• PHPGurukul Bank Locker Management System 1.0
• Web applications using the vulnerable /contact-us.php endpoint

Discovery Timeline

• 2025-03-24 - CVE-2025-2679 published to NVD
• 2025-06-04 - Last updated in NVD database

Technical Details for CVE-2025-2679

Vulnerability Analysis

This SQL Injection vulnerability stems from improper input validation in the Bank Locker Management System's contact page functionality. The application fails to sanitize user-supplied input through the pagetitle parameter before incorporating it into SQL queries executed against the backend database.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). These classifications indicate that user input is directly concatenated into SQL queries without proper escaping or parameterization.

Since the attack can be launched remotely without authentication, any attacker with network access to the vulnerable application can potentially exploit this flaw to retrieve sensitive financial data, customer records, locker information, and administrative credentials stored in the database.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries in the /contact-us.php file. The pagetitle argument is directly incorporated into SQL statements without sanitization, allowing attackers to break out of the intended query context and inject arbitrary SQL commands. This is a classic example of insufficient input validation in PHP web applications that directly concatenate user input into database queries.

Attack Vector

The vulnerability is exploitable via the network attack vector, meaning attackers can target the vulnerable endpoint remotely. The attack requires no authentication or special privileges, making it accessible to any malicious actor who can reach the web application. The exploitation involves manipulating the pagetitle parameter in HTTP requests to the /contact-us.php endpoint to inject SQL syntax that alters the intended query behavior.

Attackers could craft malicious requests containing SQL injection payloads such as UNION-based queries to extract data from other tables, boolean-based blind injection to infer database contents, or time-based blind injection techniques. The exploit details have been publicly disclosed, increasing the risk of active exploitation. For technical details, refer to the GitHub CVE Issue Discussion.

Detection Methods for CVE-2025-2679

Indicators of Compromise

• Unusual SQL error messages appearing in web server logs related to /contact-us.php
• HTTP requests to /contact-us.php containing SQL keywords like UNION, SELECT, OR, AND followed by comparison operators in the pagetitle parameter
• Database query logs showing unexpected queries or data exfiltration patterns
• Anomalous access to database tables containing sensitive customer or locker information

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the pagetitle parameter
• Enable detailed logging on the web server to capture all requests to /contact-us.php with their full parameter values
• Deploy database activity monitoring to alert on unusual query patterns or bulk data access operations
• Use intrusion detection systems with signatures for common SQL injection attack vectors

Monitoring Recommendations

• Configure alerts for HTTP 500 errors or database errors originating from the contact-us page
• Monitor for unusual database connection patterns or query execution times that may indicate blind SQL injection attempts
• Review access logs regularly for requests containing encoded special characters or SQL syntax in URL parameters
• Implement rate limiting on the /contact-us.php endpoint to slow automated exploitation attempts

How to Mitigate CVE-2025-2679

Immediate Actions Required

• Restrict network access to the Bank Locker Management System to trusted IP ranges only
• Implement input validation at the web application firewall level to block requests containing SQL injection payloads
• Consider temporarily disabling or restricting access to the /contact-us.php functionality until a patch is applied
• Audit database access logs for any signs of prior exploitation and review data integrity

Patch Information

No official vendor patch has been released at the time of this writing. Organizations using PHPGurukul Bank Locker Management System 1.0 should monitor the PHP Gurukul Blog for security updates. Additional vulnerability details are available through VulDB #300696.

Workarounds

• Implement parameterized queries (prepared statements) in the vulnerable PHP code to prevent SQL injection
• Add server-side input validation to sanitize the pagetitle parameter, rejecting or escaping special SQL characters
• Deploy a Web Application Firewall with SQL injection detection rules in front of the application
• Implement the principle of least privilege for database connections, limiting the web application's database user to only necessary permissions

# Example WAF rule configuration for ModSecurity
# Block SQL injection attempts in pagetitle parameter
SecRule ARGS:pagetitle "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in pagetitle parameter',\
    tag:'CVE-2025-2679'"