CVE-2026-2161: Clive_21 Directory Management SQL Injection

CVE-2026-2161 Overview

A SQL Injection vulnerability has been identified in itsourcecode Directory Management System version 1.0. The vulnerability exists in the /admin/forget-password.php file, where improper handling of the email parameter allows attackers to inject malicious SQL queries. This vulnerability can be exploited remotely without authentication, potentially allowing unauthorized access to sensitive database information, data manipulation, or complete database compromise.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially gain unauthorized access to the underlying system through database manipulation techniques.

Affected Products

• itsourcecode Directory Management System 1.0
• Clive_21 Directory Management System 1.0

Discovery Timeline

• 2026-02-08 - CVE-2026-2161 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2161

Vulnerability Analysis

This SQL Injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component) occurs in the password recovery functionality of the Directory Management System. The email parameter in /admin/forget-password.php is passed directly to SQL queries without proper sanitization or parameterization. This allows attackers to craft malicious input that breaks out of the intended SQL query context and executes arbitrary SQL commands.

The vulnerability is accessible over the network and requires no authentication or user interaction to exploit. An attacker can leverage this flaw to read, modify, or delete database records, potentially exposing user credentials, administrative data, and other sensitive information stored in the application's database.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries (prepared statements) in the password reset functionality. The application directly concatenates user-supplied input from the email parameter into SQL queries, creating an injection point. Proper use of prepared statements with bound parameters, or rigorous input validation and escaping, would prevent this vulnerability.

Attack Vector

The attack vector is network-based, targeting the /admin/forget-password.php endpoint. An unauthenticated remote attacker can submit a crafted HTTP request containing SQL injection payloads in the email parameter. Common exploitation techniques include:

• Union-based injection: Extracting data from other database tables by appending UNION SELECT statements
• Boolean-based blind injection: Inferring database contents through true/false responses
• Time-based blind injection: Using database delay functions to extract data when no visible output is available
• Error-based injection: Leveraging database error messages to extract information

The exploit has been publicly disclosed, making it accessible to threat actors with varying skill levels. For detailed technical information, refer to the GitHub Issue Tracker and VulDB #344863.

Detection Methods for CVE-2026-2161

Indicators of Compromise

• Unusual or malformed HTTP requests to /admin/forget-password.php containing SQL syntax characters such as single quotes ('), double dashes (--), or SQL keywords (UNION, SELECT, DROP)
• Database error messages in application logs indicating SQL syntax errors
• Unexpected database queries or data access patterns in database audit logs
• Anomalous traffic patterns targeting the password recovery endpoint

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the email parameter
• Implement intrusion detection system (IDS) signatures for common SQL injection payloads targeting PHP applications
• Enable detailed logging on the web server and database to capture suspicious queries
• Monitor for authentication bypass attempts or unauthorized administrative access following exploit attempts

Monitoring Recommendations

• Configure real-time alerting for SQL injection attack patterns in web application logs
• Establish baseline traffic patterns for the /admin/forget-password.php endpoint and alert on anomalies
• Review database audit logs regularly for unauthorized data access or extraction attempts
• Implement automated vulnerability scanning to detect similar input validation issues across the application

How to Mitigate CVE-2026-2161

Immediate Actions Required

• Restrict access to the /admin/forget-password.php endpoint using IP whitelisting or additional authentication if possible
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• Consider temporarily disabling the password reset functionality until a patch is applied
• Review database logs for signs of prior exploitation and assess potential data exposure

Patch Information

As of the last update on 2026-02-10, no official patch has been released by the vendor. Organizations using itsourcecode Directory Management System 1.0 should monitor the IT Source Code website and the GitHub Issue Tracker for updates. Given the public disclosure of this vulnerability, implementing mitigations is critical until an official fix is available.

Workarounds

• Implement prepared statements with parameterized queries in the affected PHP code to prevent SQL injection
• Apply input validation to the email parameter, ensuring it matches expected email format patterns
• Deploy a reverse proxy or WAF to filter malicious requests before they reach the application
• Restrict database user privileges to limit potential damage from successful exploitation

# Example WAF rule for ModSecurity to block SQL injection in email parameter
SecRule ARGS:email "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection attempt detected in email parameter',\
    tag:'CVE-2026-2161'"