CVE-2025-4758: Beauty Parlour Management System SQLi Flaw

CVE-2025-4758 Overview

A critical SQL injection vulnerability has been discovered in PHPGurukul Beauty Parlour Management System version 1.1. The vulnerability exists in the /contact.php file, where the fname parameter fails to properly sanitize user input before being used in SQL queries. This allows remote attackers to inject malicious SQL commands, potentially compromising the entire database. The exploit has been publicly disclosed, and other parameters in the application may also be affected by similar injection flaws.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive customer data, modify database records, or potentially gain unauthorized access to the underlying system through database server exploitation.

Affected Products

• PHPGurukul Beauty Parlour Management System 1.1
• Potentially other versions with similar codebase

Discovery Timeline

• 2025-05-16 - CVE-2025-4758 published to NVD
• 2025-05-27 - Last updated in NVD database

Technical Details for CVE-2025-4758

Vulnerability Analysis

This vulnerability stems from improper input validation in the contact form functionality of the Beauty Parlour Management System. The application accepts user-supplied data through the fname parameter in /contact.php and incorporates it directly into SQL queries without adequate sanitization or parameterization. This classic SQL injection pattern allows attackers to manipulate the query structure by injecting specially crafted input strings containing SQL syntax.

The vulnerability is classified under CWE-89 (SQL Injection) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). The attack can be launched remotely over the network without requiring any authentication or user interaction, making it accessible to any attacker who can reach the vulnerable endpoint.

Root Cause

The root cause is the direct concatenation of user-supplied input into SQL query strings without proper sanitization, escaping, or the use of prepared statements with parameterized queries. The fname parameter value is passed directly to the database query engine, allowing attackers to break out of the intended query context and execute arbitrary SQL commands. This represents a fundamental secure coding failure that is unfortunately common in PHP web applications that lack modern security practices.

Attack Vector

The attack vector is network-based, requiring no authentication or special privileges. An attacker can craft malicious HTTP requests to the /contact.php endpoint, injecting SQL payloads through the fname parameter. Successful exploitation could allow attackers to:

• Extract sensitive customer information including names, contact details, and appointment histories
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially execute operating system commands if database permissions allow

The vulnerability is exploitable through standard HTTP requests, making it accessible via web browsers, command-line tools like curl, or automated vulnerability scanners. For technical details on the exploitation methodology, refer to the GitHub Issue Discussion where the vulnerability was disclosed.

Detection Methods for CVE-2025-4758

Indicators of Compromise

• Unusual SQL error messages appearing in application logs or error responses from /contact.php
• HTTP requests to /contact.php containing SQL keywords such as UNION, SELECT, OR 1=1, DROP, or comment sequences (--, /*)
• Abnormal database query patterns or execution times indicating data exfiltration attempts
• Unexpected database modifications or new administrative accounts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in the fname parameter
• Monitor HTTP request logs for suspicious input containing SQL metacharacters and keywords targeting /contact.php
• Configure database audit logging to track unusual query patterns, failed queries, or bulk data access
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for the /contact.php endpoint and review logs regularly for injection attempts
• Set up real-time alerts for SQL error conditions and database connection anomalies
• Monitor network traffic for large outbound data transfers that could indicate successful data exfiltration
• Implement database query monitoring to detect abnormal query structures or timing-based injection attempts

How to Mitigate CVE-2025-4758

Immediate Actions Required

• Restrict access to the /contact.php endpoint using web server access controls or firewall rules until patching is possible
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules for the vulnerable parameter
• Review application logs for evidence of prior exploitation attempts
• Consider temporarily disabling the contact form functionality if business operations permit

Patch Information

At the time of this writing, no official vendor patch has been released for this vulnerability. Organizations using PHPGurukul Beauty Parlour Management System should monitor the PHP Gurukul Homepage for security updates. In the absence of an official patch, organizations should implement the workarounds described below or consider migrating to an alternative solution with better security practices.

For tracking information on this vulnerability, refer to the VulDB Entry #309060.

Workarounds

• Implement input validation on the web server level to reject requests containing SQL injection patterns
• Modify the source code to use prepared statements with parameterized queries for all database interactions in /contact.php
• Apply web server rewrite rules or filters to sanitize the fname parameter before it reaches the application
• Isolate the database server from the application with restricted permissions to limit impact of successful exploitation

# Apache mod_rewrite rule to block common SQL injection patterns
# Add to .htaccess or Apache configuration
RewriteEngine On
RewriteCond %{QUERY_STRING} (\%27)|(\')|(\-\-)|(\%23)|(#) [NC,OR]
RewriteCond %{QUERY_STRING} (union.*select) [NC,OR]
RewriteCond %{QUERY_STRING} (select.*from) [NC,OR]
RewriteCond %{QUERY_STRING} (insert.*into) [NC]
RewriteRule ^contact\.php$ - [F,L]