CVE-2026-2217: Admerc Event Management System SQLi Flaw

CVE-2026-2217 Overview

A SQL injection vulnerability has been identified in itsourcecode Event Management System version 1.0. The vulnerability exists in the /admin/manage_user.php file, where improper handling of the ID parameter allows attackers to inject malicious SQL statements. This flaw can be exploited remotely without authentication, potentially allowing unauthorized access to the underlying database, data manipulation, or information disclosure.

Critical Impact

Unauthenticated remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete sensitive data from the Event Management System database, potentially compromising user credentials and event information.

Affected Products

• Admerc Event Management System 1.0
• itsourcecode Event Management System 1.0

Discovery Timeline

• 2026-02-09 - CVE-2026-2217 published to NVD
• 2026-02-10 - Last updated in NVD database

Technical Details for CVE-2026-2217

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) occurs in the administrative user management functionality of the Event Management System. The vulnerability is classified under both CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

The vulnerable endpoint /admin/manage_user.php accepts an ID parameter that is directly incorporated into SQL queries without proper sanitization or parameterized query implementation. This allows attackers to craft malicious input that alters the intended SQL logic, enabling unauthorized database operations.

The attack can be executed remotely over the network without requiring any authentication credentials, making it particularly dangerous for publicly accessible installations of this event management system.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries when handling the ID parameter in /admin/manage_user.php. User-supplied input is concatenated directly into SQL statements, allowing attackers to break out of the intended query context and execute arbitrary SQL commands. This represents a fundamental secure coding failure where untrusted input is not treated as data but instead interpreted as part of the query structure.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can send crafted HTTP requests to the /admin/manage_user.php endpoint with malicious SQL payloads in the ID parameter. This can be accomplished through direct web requests or automated exploitation tools. The exploit methodology has been publicly disclosed, increasing the risk of active exploitation.

The vulnerability allows attackers to perform various SQL injection techniques including:

• Union-based SQL injection to extract data from other tables
• Boolean-based blind SQL injection for data inference
• Time-based blind SQL injection for environments with limited error output
• Potentially stacked queries depending on database configuration

Detection Methods for CVE-2026-2217

Indicators of Compromise

• Unusual SQL error messages in application logs from /admin/manage_user.php
• Web server access logs showing suspicious ID parameter values containing SQL syntax characters (quotes, semicolons, UNION, SELECT keywords)
• Database query logs revealing anomalous or malformed queries
• Unexpected database access patterns or data exfiltration attempts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP parameters
• Monitor application logs for SQL syntax errors and anomalous query patterns
• Deploy intrusion detection systems (IDS) with SQL injection signature detection
• Enable database audit logging to track suspicious query execution

Monitoring Recommendations

• Review web server access logs regularly for requests to /admin/manage_user.php with unusual ID parameter values
• Configure real-time alerting for SQL error patterns in application logs
• Monitor database connection attempts and query execution for anomalies
• Implement Security Information and Event Management (SIEM) correlation rules for SQL injection attack patterns

How to Mitigate CVE-2026-2217

Immediate Actions Required

• Restrict access to the /admin/manage_user.php endpoint via network controls or authentication mechanisms
• Implement Web Application Firewall (WAF) rules to block SQL injection attempts
• Consider taking the vulnerable application offline until a patch is available
• Review and audit application logs for signs of prior exploitation

Patch Information

As of the last update on 2026-02-10, no official patch has been released by the vendor. Organizations should monitor the IT Source Code Security Resource for security updates and patches. Additional technical details and vulnerability tracking information are available through VulDB #344935 and the GitHub CVE Issue Tracker.

Workarounds

• Implement input validation to restrict the ID parameter to numeric values only
• Deploy a Web Application Firewall (WAF) with SQL injection protection rules
• Restrict network access to administrative interfaces using IP allowlisting
• Consider using a reverse proxy to filter malicious requests before they reach the application

# Example Apache .htaccess configuration to restrict admin access
<Directory "/var/www/html/admin">
    # Restrict access to specific IP addresses
    Require ip 192.168.1.0/24
    
    # Block common SQL injection patterns in query strings
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (union|select|insert|update|delete|drop|;|'|--) [NC]
    RewriteRule .* - [F,L]
</Directory>