CVE-2025-9829: Beauty Parlour Management System SQLI Flaw

CVE-2025-9829 Overview

A SQL injection vulnerability has been identified in PHPGurukul Beauty Parlour Management System version 1.1. The vulnerability exists in the /signup.php file where the mobilenumber parameter is not properly sanitized before being used in SQL queries. This allows remote attackers to inject malicious SQL statements, potentially leading to unauthorized data access, data manipulation, or complete database compromise. The exploit has been publicly disclosed, and other parameters within the application may also be affected by similar injection flaws.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive customer and business data, modify database records, or potentially gain further access to the underlying server through SQL injection techniques.

Affected Products

• PHPGurukul Beauty Parlour Management System 1.1

Discovery Timeline

• 2025-09-02 - CVE-2025-9829 published to NVD
• 2025-09-05 - Last updated in NVD database

Technical Details for CVE-2025-9829

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) occurs in the user registration functionality of PHPGurukul Beauty Parlour Management System. The /signup.php file fails to properly sanitize user-supplied input in the mobilenumber parameter before incorporating it into SQL queries. This classic injection flaw (CWE-74) allows attackers to manipulate the intended SQL query structure by injecting malicious SQL syntax through the registration form.

The vulnerability is remotely exploitable without authentication, as the signup page is typically accessible to unauthenticated users. The network-accessible attack vector with low complexity makes this vulnerability particularly dangerous for public-facing deployments of this management system. Additionally, the CVE description notes that other parameters in the application may be affected by similar injection issues, suggesting a systemic lack of input validation throughout the codebase.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the PHP code handling user registration. The mobilenumber parameter from the signup form is directly concatenated into SQL queries without sanitization, escaping, or the use of parameterized statements. This is a common vulnerability pattern in legacy PHP applications that do not follow secure coding practices for database interactions.

Attack Vector

The attack can be executed remotely over the network by any unauthenticated user who can access the application's signup page. An attacker would craft a malicious HTTP POST request to /signup.php with specially crafted SQL injection payloads in the mobilenumber parameter. The injected SQL code is then executed in the context of the application's database connection, allowing the attacker to:

• Extract sensitive data from the database using UNION-based or blind SQL injection techniques
• Bypass authentication mechanisms
• Modify or delete database records
• Potentially execute operating system commands if the database is configured with elevated privileges

The vulnerability mechanism involves manipulating the mobilenumber field during user registration. When an attacker submits a crafted payload containing SQL syntax characters (such as single quotes, UNION statements, or comment sequences), the application fails to properly escape or parameterize this input before including it in database queries. This allows the injected SQL to be interpreted and executed by the database server. For technical details, see the GitHub Issue Tracker and VulDB #322176.

Detection Methods for CVE-2025-9829

Indicators of Compromise

• Unusual database query errors or SQL syntax errors in application logs associated with /signup.php
• Abnormal patterns in the mobilenumber field containing SQL keywords such as UNION, SELECT, OR, AND, --, or single quotes
• Unexpected database access patterns or data exfiltration attempts from the backend database
• Multiple failed or suspicious registration attempts from the same IP address

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP POST requests to /signup.php
• Configure database query logging and alert on anomalous queries containing injection signatures
• Deploy intrusion detection systems (IDS) with signatures for common SQL injection attack patterns
• Monitor application error logs for SQL syntax errors that may indicate exploitation attempts

Monitoring Recommendations

• Enable detailed logging for all database queries executed by the Beauty Parlour Management System
• Set up real-time alerts for any SQL errors or exceptions occurring in the /signup.php endpoint
• Monitor network traffic for suspicious POST requests containing SQL injection payloads targeting the registration functionality
• Review database audit logs for unauthorized data access or privilege escalation attempts

How to Mitigate CVE-2025-9829

Immediate Actions Required

• Remove public access to the affected Beauty Parlour Management System or restrict access to trusted networks only
• Implement input validation on the mobilenumber parameter to accept only numeric characters
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as an interim measure
• Review database permissions and ensure the application uses a least-privilege database account

Patch Information

At the time of this publication, no official patch from PHPGurukul has been identified for this vulnerability. Organizations using this software should monitor the PHP Gurukul Homepage for security updates. In the absence of an official patch, implementing the workarounds below is strongly recommended. Additional details can be found at VulDB #322176.

Workarounds

• Modify the /signup.php file to use parameterized queries (prepared statements) with PDO or MySQLi instead of direct string concatenation
• Implement server-side input validation to ensure the mobilenumber parameter contains only numeric digits and has a reasonable length limit
• Deploy a reverse proxy or WAF with ModSecurity and OWASP Core Rule Set to filter malicious SQL injection attempts
• Consider replacing the vulnerable application with a more secure alternative if the vendor does not provide timely security updates

# Example WAF rule for ModSecurity to help mitigate SQL injection
# Add to your ModSecurity configuration
SecRule ARGS:mobilenumber "@rx (?i)(union|select|insert|update|delete|drop|--|;)" \
    "id:1001,phase:2,deny,status:403,msg:'SQL Injection attempt blocked in mobilenumber parameter'"