CVE-2026-26884: Men's Salon Management System SQLi Flaw

CVE-2026-26884 Overview

CVE-2026-26884 is a SQL Injection vulnerability affecting Sourcecodester Online Men's Salon Management System version 1.0. The vulnerability exists in the /msms/admin/appointments/view_appointment.php endpoint, allowing authenticated attackers with administrative privileges to inject malicious SQL queries and potentially extract sensitive data from the underlying database.

Critical Impact

Authenticated attackers with administrative access can exploit this SQL Injection flaw to read sensitive database contents, potentially exposing customer personal information, appointment records, and system credentials stored in the application database.

Affected Products

• Oretnom23 Simple Online Men's Salon Management System version 1.0
• Sourcecodester Online Men's Salon Management System v1.0

Discovery Timeline

• 2026-03-03 - CVE-2026-26884 published to NVD
• 2026-03-04 - Last updated in NVD database

Technical Details for CVE-2026-26884

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) affects the appointment viewing functionality within the administrative panel of the Online Men's Salon Management System. The flaw occurs when user-supplied input is passed to the view_appointment.php script without proper sanitization or parameterized query handling, allowing an attacker to manipulate SQL queries executed against the backend database.

The vulnerability requires administrative privileges to exploit, which limits the attack surface. However, once authenticated, an attacker can leverage this flaw to extract confidential information from the database, including customer records, appointment details, and potentially stored credentials.

Root Cause

The root cause of this vulnerability is improper input validation and the absence of parameterized queries in the view_appointment.php file. The application directly concatenates user input into SQL query strings without proper sanitization, escaping, or the use of prepared statements. This classic coding error allows attackers to inject arbitrary SQL syntax that gets executed by the database engine.

Attack Vector

The attack is network-based and targets the administrative panel at /msms/admin/appointments/view_appointment.php. An attacker must first authenticate with valid administrative credentials. Once authenticated, they can craft malicious requests containing SQL injection payloads directed at vulnerable parameters within the appointment viewing functionality.

The injection point allows the attacker to modify the intended SQL query structure, enabling extraction of database contents through techniques such as UNION-based injection, boolean-based blind injection, or time-based blind injection depending on the application's response behavior.

Technical details and proof-of-concept information are available in the GitHub SQL Injection Report.

Detection Methods for CVE-2026-26884

Indicators of Compromise

• Unusual SQL syntax appearing in web server access logs for /msms/admin/appointments/view_appointment.php
• Anomalous database query patterns including UNION SELECT statements or time-based functions like SLEEP() or WAITFOR DELAY
• Multiple failed or unusual requests to the appointment viewing endpoint from administrative sessions
• Database error messages in application logs indicating malformed SQL queries

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the /msms/admin/appointments/ path
• Deploy database activity monitoring to identify unusual query patterns or unauthorized data extraction attempts
• Enable detailed logging for all administrative panel access and correlate with database query logs
• Configure intrusion detection systems (IDS) to alert on SQL injection signature patterns in HTTP traffic

Monitoring Recommendations

• Monitor web server logs for requests containing SQL keywords (UNION, SELECT, INSERT, DROP, etc.) in URL parameters
• Establish baseline database query patterns and alert on deviations indicating potential injection attacks
• Track administrative session activity for unusual volumes of appointment viewing requests
• Review application error logs regularly for database-related exceptions

How to Mitigate CVE-2026-26884

Immediate Actions Required

• Restrict administrative panel access to trusted IP addresses only
• Implement additional authentication controls such as multi-factor authentication for admin accounts
• Deploy a Web Application Firewall with SQL injection protection rules enabled
• Consider taking the application offline if it processes sensitive customer data until a patch is available

Patch Information

No official vendor patch has been released at this time. The vulnerability was disclosed via a public bug report on GitHub. Organizations using this software should monitor for updates from the vendor and consider implementing the workarounds below until an official fix is available.

Workarounds

• Modify the vulnerable view_appointment.php file to use prepared statements (PDO or MySQLi with parameter binding) instead of string concatenation
• Implement strict input validation on all parameters passed to the appointment viewing functionality
• Add a Web Application Firewall (WAF) in front of the application to filter malicious SQL injection payloads
• Limit database user privileges for the application to read-only access on required tables
• Consider migrating to a more actively maintained salon management solution if vendor support is unavailable

# Example: Restrict access to admin panel via Apache .htaccess
<Directory "/var/www/html/msms/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>