CVE-2026-5195: Student Membership System SQLi Vulnerability

CVE-2026-5195 Overview

A SQL injection vulnerability has been identified in the code-projects Student Membership System version 1.0. This security flaw affects the User Registration Handler component, where improper input validation allows attackers to inject malicious SQL commands. The vulnerability can be exploited remotely without authentication, potentially enabling unauthorized access to the underlying database.

Critical Impact

Attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive data, modify database contents, or potentially execute administrative operations on the database server.

Affected Products

• code-projects Student Membership System 1.0
• User Registration Handler component

Discovery Timeline

• 2026-03-31 - CVE-2026-5195 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2026-5195

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly known as Injection. The User Registration Handler component in the Student Membership System fails to properly sanitize user-supplied input before incorporating it into SQL queries. This allows attackers to manipulate the query structure by injecting special SQL characters and commands.

The vulnerability is accessible over the network without requiring any privileges or user interaction, making it particularly concerning for publicly accessible deployments. While the impact is limited to partial compromise of confidentiality, integrity, and availability, the ease of exploitation increases the overall risk.

Root Cause

The root cause of this vulnerability is the lack of proper input validation and parameterized queries in the User Registration Handler. When processing user registration data, the application directly concatenates user input into SQL statements without sanitization. This failure to use prepared statements or proper escaping mechanisms allows SQL metacharacters to break out of the intended query context.

Attack Vector

The attack can be launched remotely over the network. An unauthenticated attacker can submit specially crafted input through the user registration form that contains SQL injection payloads. When the application processes this input, the malicious SQL commands are executed against the database, potentially allowing the attacker to:

• Extract sensitive user data from the database
• Bypass authentication mechanisms
• Modify or delete existing records
• Enumerate database structure and contents

The vulnerability does not require any special conditions or user interaction to exploit, as the malicious payload is processed directly by the server-side registration handler.

Detection Methods for CVE-2026-5195

Indicators of Compromise

• Unusual SQL error messages in application logs from the registration handler
• Database queries containing SQL injection patterns such as ' OR '1'='1, UNION SELECT, or comment sequences (--, /**/)
• Abnormal registration form submissions with SQL syntax characters
• Unexpected database access patterns or data extraction attempts

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in registration form submissions
• Monitor application logs for SQL syntax errors and database exceptions originating from the User Registration Handler
• Deploy database activity monitoring to detect unauthorized queries or data extraction attempts
• Conduct regular vulnerability scanning targeting the registration functionality

Monitoring Recommendations

• Enable detailed logging for the User Registration Handler component to capture all input parameters
• Set up alerts for database query anomalies including time-based attacks and error-based extraction
• Monitor for high-volume registration attempts that may indicate automated exploitation
• Review database audit logs for suspicious SELECT, UNION, or administrative command execution

How to Mitigate CVE-2026-5195

Immediate Actions Required

• Restrict public access to the registration functionality until patches are applied
• Implement input validation on the server side to reject SQL metacharacters in registration fields
• Deploy a Web Application Firewall with SQL injection prevention rules
• Review and sanitize all database queries in the User Registration Handler

Patch Information

As of the last update on 2026-04-01, no official vendor patch has been released for this vulnerability. Organizations using the affected software should monitor the Code Projects website for security updates. Additional technical details about this vulnerability can be found in the GitHub CVE Issue and the VulDB Vulnerability Entry.

Workarounds

• Implement parameterized queries or prepared statements for all database operations in the registration handler
• Apply input validation to reject special characters commonly used in SQL injection attacks (', ", ;, --, /*)
• Use an ORM (Object-Relational Mapping) layer to abstract database interactions
• Limit database user privileges to only the minimum required for the application
• Consider disabling the registration feature temporarily if it is not business-critical

# Example WAF rule configuration for ModSecurity
# Add to your ModSecurity configuration to help block SQL injection attempts
SecRule ARGS "@detectSQLi" \
    "id:1001,\
    phase:2,\
    block,\
    msg:'SQL Injection Attack Detected in Registration',\
    logdata:'Matched Data: %{MATCHED_VAR}',\
    severity:'CRITICAL'"