CVE-2026-37592: Storage Unit Rental System SQLi Flaw

CVE-2026-37592 Overview

A SQL Injection vulnerability has been identified in Sourcecodester Storage Unit Rental Management System v1.0. The vulnerability exists in the file /storage/admin/maintenance/manage_pricing.php, allowing authenticated attackers with high privileges to execute arbitrary SQL queries against the backend database.

Critical Impact

Authenticated administrators can exploit this SQL injection flaw to extract sensitive data from the database, potentially compromising user information and system integrity.

Affected Products

• Sourcecodester Storage Unit Rental Management System v1.0
• /storage/admin/maintenance/manage_pricing.php endpoint

Discovery Timeline

• 2026-04-14 - CVE-2026-37592 published to NVD
• 2026-04-14 - Last updated in NVD database

Technical Details for CVE-2026-37592

Vulnerability Analysis

This vulnerability is classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), commonly known as SQL Injection. The vulnerable endpoint /storage/admin/maintenance/manage_pricing.php fails to properly sanitize user-supplied input before incorporating it into SQL queries.

While the attack requires network access and high-level administrative privileges, the vulnerability allows for unauthorized read access to confidential database information. The scope is unchanged, meaning the exploit's impact is limited to the vulnerable component itself.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the manage_pricing.php file. User-controlled input is directly concatenated into SQL statements without proper sanitization or the use of prepared statements, enabling SQL injection attacks.

Attack Vector

The attack vector is network-based, requiring the attacker to have authenticated access with high privileges (administrative role). An attacker can craft malicious SQL payloads within parameters processed by the pricing management functionality. These payloads are then executed by the database engine, potentially allowing the attacker to extract sensitive information.

The vulnerability allows an authenticated administrator to manipulate SQL queries through the pricing management interface. By injecting malicious SQL syntax into vulnerable parameters, an attacker can bypass intended query logic and retrieve unauthorized data from the database. For detailed technical information, refer to the GitHub SQL Injection Report.

Detection Methods for CVE-2026-37592

Indicators of Compromise

• Unusual SQL error messages in web server logs originating from /storage/admin/maintenance/manage_pricing.php
• Abnormal database query patterns or unexpected data access attempts
• Multiple failed or anomalous requests to the pricing management endpoint

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP requests
• Monitor application logs for SQL syntax errors or unexpected query execution
• Implement database activity monitoring to detect unauthorized data extraction attempts

Monitoring Recommendations

• Enable detailed logging for the /storage/admin/maintenance/ directory
• Set up alerts for database queries containing SQL injection signatures (e.g., UNION SELECT, OR 1=1)
• Monitor administrator account activity for unusual access patterns

How to Mitigate CVE-2026-37592

Immediate Actions Required

• Restrict access to the administrative interface to trusted IP addresses only
• Review and audit all administrator accounts for unauthorized access
• Consider temporarily disabling the pricing management functionality until a patch is available

Patch Information

No official vendor patch is currently available. Administrators should monitor Sourcecodester's official channels for security updates. As an interim measure, implement input validation and convert raw SQL queries to parameterized prepared statements in the manage_pricing.php file.

Workarounds

• Implement input validation and sanitization for all user-supplied parameters in manage_pricing.php
• Use prepared statements with parameterized queries to prevent SQL injection
• Apply network-level access controls to restrict admin panel access
• Deploy a Web Application Firewall (WAF) with SQL injection detection rules

# Configuration example - Apache .htaccess to restrict admin access
<Directory "/storage/admin/maintenance">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>