CVE-2025-3313: Men Salon Management System SQL Injection

CVE-2025-3313 Overview

A critical SQL injection vulnerability has been identified in PHPGurukul Men Salon Management System version 1.0. The vulnerability exists in the /admin/add-customer.php file, where the Name argument is improperly handled, allowing attackers to inject malicious SQL queries. This flaw enables remote attackers to manipulate database queries without authentication, potentially compromising the entire application database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive customer data, modify database records, or potentially gain unauthorized administrative access to the salon management system.

Affected Products

• PHPGurukul Men Salon Management System version 1.0
• Systems running the vulnerable /admin/add-customer.php endpoint

Discovery Timeline

• 2025-04-06 - CVE-2025-3313 published to NVD
• 2025-05-07 - Last updated in NVD database

Technical Details for CVE-2025-3313

Vulnerability Analysis

This SQL injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) occurs in the customer creation functionality of the Men Salon Management System. The application fails to properly sanitize user-supplied input in the Name parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL commands that are executed by the database server.

The vulnerability is remotely exploitable over the network and requires no authentication or user interaction, making it particularly dangerous for internet-facing deployments. An attacker can craft malicious input containing SQL syntax that breaks out of the intended query structure and executes additional commands.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries (prepared statements) in the /admin/add-customer.php file. User-supplied data from the Name field is directly concatenated into SQL statements without proper sanitization or escaping, enabling injection attacks.

Attack Vector

The attack can be launched remotely over the network by submitting specially crafted input to the Name parameter in the customer addition form. An attacker would craft a malicious payload containing SQL metacharacters and commands designed to manipulate the database query logic.

For example, an attacker might submit input containing single quotes and SQL commands to terminate the original query and append malicious operations such as UNION SELECT statements to extract data from other tables, or DROP TABLE commands to destroy data.

Detailed technical information about this vulnerability can be found in the GitHub Issue on CVE and VulDB #303510.

Detection Methods for CVE-2025-3313

Indicators of Compromise

• Unusual or malformed entries in the customer database containing SQL syntax characters (single quotes, semicolons, UNION keywords)
• Database error messages in application logs indicating syntax errors or unexpected query behavior
• Unexpected database queries appearing in database server logs, particularly those containing UNION, SELECT, or data extraction commands

Detection Strategies

• Deploy web application firewall (WAF) rules to detect and block SQL injection patterns in HTTP request parameters
• Implement application-level logging for the /admin/add-customer.php endpoint to capture all input submissions
• Configure database query logging to identify suspicious query patterns originating from the application
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack payloads

Monitoring Recommendations

• Monitor web server access logs for repeated requests to /admin/add-customer.php with unusual parameter values
• Set up alerts for database errors related to malformed SQL queries
• Track failed login attempts and unusual administrative activity following potential exploitation
• Review database audit logs for unauthorized data access or modification operations

How to Mitigate CVE-2025-3313

Immediate Actions Required

• Restrict access to the /admin/add-customer.php endpoint through network-level controls or authentication requirements
• Implement input validation to reject special characters commonly used in SQL injection attacks
• Consider taking the affected application offline until a patch is available or workarounds are implemented
• Review database logs for evidence of prior exploitation and assess potential data compromise

Patch Information

At the time of this writing, no official vendor patch has been released for this vulnerability. System administrators should monitor the PHP Gurukul Security Resources for security updates. Until an official patch is available, implementing the recommended workarounds is essential.

Workarounds

• Implement prepared statements (parameterized queries) in the affected PHP code to properly handle user input
• Deploy a web application firewall (WAF) configured to block SQL injection attempts targeting the Name parameter
• Apply input validation to sanitize and escape all user-supplied data before database operations
• Restrict network access to administrative endpoints using IP whitelisting or VPN requirements

# Example WAF rule to block SQL injection patterns (ModSecurity)
SecRule ARGS:Name "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in Name parameter',\
    log,\
    auditlog"