CVE-2025-2680: Bank Locker Management System SQLi Flaw

CVE-2025-2680 Overview

A critical SQL Injection vulnerability has been identified in PHPGurukul Bank Locker Management System version 1.0. The vulnerability exists in the /edit-assign-locker.php file, where improper handling of the mobilenumber parameter allows attackers to inject malicious SQL queries. This flaw enables unauthorized access to sensitive banking and customer data stored in the application's database.

Critical Impact

Remote attackers can exploit this SQL Injection vulnerability without authentication to extract, modify, or delete sensitive banking information including customer locker details, personal identification data, and potentially financial records.

Affected Products

• PHPGurukul Bank Locker Management System 1.0
• Systems running the vulnerable /edit-assign-locker.php endpoint

Discovery Timeline

• 2025-03-24 - CVE-2025-2680 published to NVD
• 2025-06-04 - Last updated in NVD database

Technical Details for CVE-2025-2680

Vulnerability Analysis

This SQL Injection vulnerability occurs when user-supplied input through the mobilenumber parameter in /edit-assign-locker.php?ltid=1 is incorporated directly into SQL queries without proper sanitization or parameterized query implementation. The application fails to validate or escape special characters in the mobile number field, allowing attackers to manipulate the underlying database queries.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). These classifications indicate that the application improperly neutralizes special elements within SQL commands, creating a pathway for injection attacks.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and the use of unsanitized user input in SQL query construction. The mobilenumber parameter is likely concatenated directly into SQL statements rather than being passed through prepared statements or parameterized queries. This common PHP development oversight allows attackers to break out of the intended query context and execute arbitrary SQL commands.

Attack Vector

The attack can be launched remotely over the network without requiring any authentication or user interaction. An attacker can craft malicious HTTP requests to the /edit-assign-locker.php endpoint with specially crafted values in the mobilenumber parameter. The exploit has been publicly disclosed, increasing the risk of active exploitation.

The attack flow typically involves:

1. Identifying the vulnerable endpoint /edit-assign-locker.php with the ltid parameter
2. Injecting SQL metacharacters through the mobilenumber parameter
3. Extracting database contents using UNION-based, error-based, or blind SQL injection techniques
4. Potentially escalating to database server compromise depending on database permissions

For technical details on the exploitation methodology, refer to the GitHub CVE Issue Discussion and VulDB #300697.

Detection Methods for CVE-2025-2680

Indicators of Compromise

• Unusual HTTP requests to /edit-assign-locker.php containing SQL metacharacters such as single quotes, semicolons, or UNION statements in the mobilenumber parameter
• Database error messages appearing in application logs indicating malformed SQL queries
• Unexpected database queries or data extraction patterns in database audit logs
• Anomalous traffic patterns targeting PHP endpoints with parameter manipulation attempts

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the mobilenumber parameter
• Implement database activity monitoring to identify unusual query patterns, especially those involving UNION, SELECT, or data exfiltration commands
• Configure intrusion detection systems (IDS) with signatures for common SQL injection attack patterns targeting PHP applications
• Enable verbose logging on the web server to capture and analyze requests to the vulnerable endpoint

Monitoring Recommendations

• Monitor HTTP access logs for requests to /edit-assign-locker.php with suspicious parameter values
• Set up alerts for database errors that may indicate SQL injection attempts
• Review database audit logs for unauthorized data access or extraction attempts
• Implement real-time log analysis to detect patterns consistent with automated SQL injection tools such as sqlmap

How to Mitigate CVE-2025-2680

Immediate Actions Required

• Remove or disable access to the /edit-assign-locker.php endpoint if not critical to operations until a patch is available
• Implement input validation at the web server level using WAF rules to filter malicious requests
• Restrict network access to the application to trusted IP addresses only where feasible
• Audit the database for signs of unauthorized access or data exfiltration

Patch Information

As of the last update, no official vendor patch has been released for this vulnerability. Organizations using PHPGurukul Bank Locker Management System should monitor the PHP Gurukul Security Resources page for security updates. Given the critical nature of this vulnerability in a financial application, organizations should consider implementing immediate workarounds or migrating to a more secure alternative.

Workarounds

• Implement prepared statements and parameterized queries in the vulnerable PHP file by modifying the source code to use PDO or MySQLi with bound parameters
• Deploy a Web Application Firewall configured to block SQL injection attempts targeting the mobilenumber parameter
• Add server-side input validation to ensure the mobilenumber parameter only accepts numeric values matching expected phone number formats
• Implement the principle of least privilege for database accounts used by the application to limit the impact of successful exploitation

# Example WAF rule for ModSecurity to block SQL injection in mobilenumber parameter
SecRule ARGS:mobilenumber "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in mobilenumber parameter',\
    log,\
    tag:'CVE-2025-2680'"