CVE-2026-1594: Society Management System SQL Injection

CVE-2026-1594 Overview

A SQL injection vulnerability has been identified in itsourcecode Society Management System version 1.0. The vulnerability exists in the /admin/add_expenses.php file, where the detail parameter is not properly sanitized before being used in SQL queries. This allows remote attackers to manipulate database queries, potentially leading to unauthorized data access, modification, or deletion.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability without authentication to extract sensitive data, modify database contents, or potentially compromise the underlying server through database-level attacks.

Affected Products

• itsourcecode Society Management System 1.0
• Installations with exposed /admin/add_expenses.php endpoint
• PHP-based deployments using vulnerable SQL query construction

Discovery Timeline

• 2026-01-29 - CVE-2026-1594 published to NVD
• 2026-01-29 - Last updated in NVD database

Technical Details for CVE-2026-1594

Vulnerability Analysis

This vulnerability is classified as an injection flaw (CWE-74) affecting the expense management functionality of the Society Management System. The application fails to properly validate and sanitize user-supplied input in the detail parameter before incorporating it into SQL statements. This allows attackers to inject malicious SQL code that the database server executes as part of legitimate queries.

The attack can be launched remotely over the network without requiring any authentication credentials or user interaction. The exploit has been publicly disclosed, increasing the risk of opportunistic attacks against vulnerable installations.

Root Cause

The root cause of this vulnerability lies in the improper handling of user input in the /admin/add_expenses.php file. The detail parameter is directly concatenated or interpolated into SQL queries without adequate input validation, parameterized queries, or prepared statements. This classic SQL injection pattern allows attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The attack is network-based and targets the administrative expense management functionality. An attacker can craft malicious HTTP requests containing SQL injection payloads in the detail parameter. When the application processes these requests, the injected SQL code is executed against the backend database.

Successful exploitation could allow attackers to:

• Extract sensitive data from the database (user credentials, financial records, personal information)
• Modify or delete database records
• Bypass authentication mechanisms
• Potentially achieve remote code execution if database features like xp_cmdshell (SQL Server) or LOAD_FILE/INTO OUTFILE (MySQL) are available

The vulnerability can be exploited through standard SQL injection techniques targeting the detail parameter. Technical details and proof-of-concept information have been documented in the GitHub Issue Discussion and VulDB entry #343356.

Detection Methods for CVE-2026-1594

Indicators of Compromise

• Unusual or malformed requests to /admin/add_expenses.php containing SQL syntax characters such as single quotes, double dashes, UNION, SELECT, or OR 1=1
• Database error messages appearing in application logs or responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns targeting the detail parameter
• Implement application-level logging to capture all requests to /admin/add_expenses.php with full parameter values
• Configure database audit logging to track anomalous query patterns and unauthorized data access attempts
• Use intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Monitor web server access logs for requests to /admin/add_expenses.php with suspicious parameter values
• Set up alerts for database errors that may indicate injection attempts
• Review database query logs for unusual UNION, SELECT, or data extraction patterns
• Implement rate limiting on administrative endpoints to slow potential automated exploitation

How to Mitigate CVE-2026-1594

Immediate Actions Required

• Restrict network access to the /admin/add_expenses.php endpoint using firewall rules or .htaccess configurations
• Implement IP whitelisting to allow only trusted administrative IP addresses to access the admin panel
• Deploy a Web Application Firewall with SQL injection protection rules
• Consider taking the vulnerable application offline until a patch is available or mitigations are fully implemented

Patch Information

No official vendor patch has been released at the time of this publication. Organizations using itsourcecode Society Management System 1.0 should monitor the IT Source Code website for security updates. In the absence of an official patch, implementing the workarounds below is strongly recommended.

For additional technical details and vulnerability tracking, refer to the VulDB entry #343356.

Workarounds

• Implement input validation to reject special characters and SQL keywords in the detail parameter
• Modify the vulnerable PHP code to use prepared statements with parameterized queries instead of string concatenation
• Add a Web Application Firewall rule specifically blocking SQL injection attempts on the detail parameter
• Restrict access to the admin panel using authentication mechanisms at the web server level (HTTP Basic Auth, client certificates)

# Apache .htaccess configuration to restrict admin access by IP
<Files "add_expenses.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>

# Alternative: Block common SQL injection patterns (use with WAF)
# ModSecurity rule example
SecRule ARGS:detail "@rx (?i)(union|select|insert|update|delete|drop|--|;)" \
    "id:1001,phase:2,deny,status:403,msg:'SQL Injection attempt blocked'"