CVE-2026-26885: Men's Salon Management System SQLi Flaw

CVE-2026-26885 Overview

CVE-2026-26885 is a SQL Injection vulnerability affecting Sourcecodester Online Men's Salon Management System v1.0. The vulnerability exists in the /classes/Master.php endpoint when processing the f=delete_service parameter. An authenticated attacker with high privileges can exploit this flaw to inject arbitrary SQL commands, potentially leading to unauthorized data access.

Critical Impact

Authenticated users with administrative privileges can exploit this SQL injection vulnerability to extract sensitive information from the database, including customer personal data and credentials.

Affected Products

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

Discovery Timeline

• 2026-03-03 - CVE-2026-26885 published to NVD
• 2026-03-04 - Last updated in NVD database

Technical Details for CVE-2026-26885

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in the delete service functionality of the Online Men's Salon Management System. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries. When a privileged user makes a request to the Master.php endpoint with the f=delete_service action, the supplied parameters are directly concatenated into the SQL statement without adequate validation or parameterization.

The vulnerability requires an attacker to possess high-level privileges (such as administrator access) to the application. While this limits the attack surface, it still presents a significant risk in scenarios involving compromised administrator accounts, insider threats, or privilege escalation chains.

Root Cause

The root cause of this vulnerability is improper input validation and the use of unsanitized user input in SQL query construction. The Master.php file does not implement prepared statements or parameterized queries when handling the delete service operation. Instead, user-controlled data flows directly into the SQL statement, creating an injection point.

Attack Vector

The attack is network-based and targets the /classes/Master.php?f=delete_service endpoint. An attacker with administrative credentials can craft malicious HTTP requests containing SQL injection payloads within parameters passed to this endpoint. By manipulating the SQL query, the attacker can bypass intended query logic to extract data from the database.

The exploitation mechanism involves sending specially crafted requests to the vulnerable endpoint. An attacker could use boolean-based, time-based, or UNION-based SQL injection techniques to enumerate database contents. For detailed technical information, refer to the GitHub Vulnerability Report.

Detection Methods for CVE-2026-26885

Indicators of Compromise

• Unusual or malformed HTTP requests targeting /classes/Master.php?f=delete_service
• SQL error messages appearing in application logs or responses
• Unexpected database queries with syntax anomalies or SQL keywords in parameter values
• Abnormal data extraction patterns or bulk data access from privileged accounts

Detection Strategies

• Implement web application firewall (WAF) rules to detect SQL injection patterns in requests to Master.php
• Monitor database query logs for anomalous statements originating from the application
• Deploy application-level logging to capture all requests to sensitive administrative endpoints
• Use intrusion detection systems with signatures for common SQL injection techniques

Monitoring Recommendations

• Enable verbose logging for all administrative actions within the salon management system
• Configure alerts for multiple failed or unusual requests to the delete service functionality
• Implement database activity monitoring to detect unauthorized data access patterns
• Regularly review access logs for the /classes/ directory for suspicious activity

How to Mitigate CVE-2026-26885

Immediate Actions Required

• Restrict network access to the administrative interface to trusted IP addresses only
• Review and audit all administrator accounts for unauthorized access or compromise
• Implement additional authentication controls for sensitive administrative functions
• Consider temporarily disabling the delete service functionality until a patch is applied

Patch Information

At the time of publication, no official vendor patch is available for this vulnerability. Organizations using this software should implement the workarounds below and monitor for updates from the developer. The vulnerability was documented in a GitHub bug report.

Workarounds

• Implement input validation and sanitization for all user-supplied parameters in Master.php
• Modify the application code to use prepared statements with parameterized queries
• Deploy a web application firewall (WAF) with SQL injection protection rules
• Restrict administrative access to the application through network segmentation
• Consider migrating to an actively maintained salon management solution if no patch is forthcoming

# Configuration example - Web Application Firewall rule (ModSecurity)
# Block SQL injection attempts targeting the vulnerable endpoint
SecRule REQUEST_URI "@contains /classes/Master.php" \
    "id:100001,phase:2,deny,status:403,log,\
    chain"
SecRule ARGS "@detectSQLi" \
    "setvar:tx.sql_injection_score=+1"