CVE-2025-7471: Modern Bag SQLi Vulnerability

CVE-2025-7471 Overview

A SQL injection vulnerability has been identified in code-projects Modern Bag version 1.0. This critical flaw exists in the administrative login functionality, specifically in the /admin/login-back.php file. The vulnerability allows remote attackers to manipulate the user-name parameter to inject malicious SQL queries, potentially compromising the entire database and administrative access to the application.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to bypass authentication, extract sensitive data, modify database contents, or potentially gain complete control over the affected web application.

Affected Products

• code-projects Modern Bag 1.0

Discovery Timeline

• 2025-07-12 - CVE CVE-2025-7471 published to NVD
• 2025-07-15 - Last updated in NVD database

Technical Details for CVE-2025-7471

Vulnerability Analysis

This vulnerability is classified as SQL Injection (CWE-89) and falls under the broader category of Injection vulnerabilities (CWE-74). The flaw resides in the authentication mechanism of the Modern Bag e-commerce application, specifically within the admin login processing script.

The vulnerable endpoint /admin/login-back.php fails to properly sanitize or parameterize user input before incorporating it into SQL queries. When a user submits login credentials, the user-name parameter is directly concatenated into a database query without adequate validation or escaping. This allows attackers to craft malicious input that alters the intended SQL logic.

The attack can be launched remotely over the network, requiring no authentication or user interaction. This means any attacker with network access to the vulnerable application can attempt exploitation. The exploit has been publicly disclosed, increasing the likelihood of malicious exploitation in the wild.

Root Cause

The root cause of this vulnerability is improper input validation and the use of dynamic SQL query construction. The application directly incorporates user-supplied data from the user-name field into SQL statements without using parameterized queries or prepared statements. This classic SQL injection pattern allows attackers to escape the intended query context and inject arbitrary SQL commands.

Attack Vector

The attack vector is network-based, targeting the administrative login page at /admin/login-back.php. An attacker can exploit this vulnerability by:

1. Navigating to the admin login page of a vulnerable Modern Bag installation
2. Entering a specially crafted SQL injection payload in the user-name field
3. The malicious input bypasses authentication logic or extracts database information
4. The attacker gains unauthorized access or sensitive data depending on the payload used

Typical SQL injection payloads such as ' OR '1'='1 or admin'-- could be used to bypass authentication. More sophisticated payloads using UNION-based or time-based blind injection techniques could be employed to extract database contents. For additional technical details, refer to the GitHub CVE Issue Discussion and VulDB #316123.

Detection Methods for CVE-2025-7471

Indicators of Compromise

• Unusual or malformed values in web server access logs for /admin/login-back.php, particularly in the user-name parameter
• Database query errors or exceptions appearing in application logs indicating SQL syntax errors
• Unexpected administrative access or new admin accounts created without authorization
• Evidence of database enumeration or data exfiltration in network traffic logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in POST parameters
• Implement intrusion detection signatures for SQL injection attack strings targeting the user-name parameter
• Monitor application logs for repeated login attempts with special characters (', ", --, ;, OR, UNION) in usernames
• Use SentinelOne Singularity Platform to detect anomalous process behavior following web application exploitation

Monitoring Recommendations

• Enable detailed logging on the web server for all requests to /admin/login-back.php
• Configure database audit logging to capture all queries executed against the authentication tables
• Set up alerting for authentication failures followed by successful logins from the same source
• Monitor for unusual database activity patterns such as bulk data access or schema enumeration

How to Mitigate CVE-2025-7471

Immediate Actions Required

• Restrict network access to the admin login page (/admin/login-back.php) to trusted IP addresses only
• Implement a Web Application Firewall (WAF) with SQL injection protection rules
• Review database permissions and ensure the web application database user has minimal required privileges
• Consider temporarily disabling the admin login functionality until a patch is applied

Patch Information

No official vendor patch is currently available for this vulnerability. As this is an open-source project from code-projects, users should check the Code Projects Resource Hub for updates or community-provided fixes. Organizations using this software should prioritize implementing workarounds and consider migrating to a more actively maintained e-commerce solution.

Workarounds

• Implement input validation on the server-side to reject usernames containing SQL metacharacters
• Modify the vulnerable code to use parameterized queries or prepared statements instead of string concatenation
• Deploy a reverse proxy with ModSecurity or similar WAF to filter malicious requests before they reach the application
• Place the admin interface behind VPN or IP-based access restrictions to limit the attack surface

# Example: Apache .htaccess to restrict admin access by IP
<Directory "/var/www/html/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>