CVE-2026-4900: Online Food Ordering Path Traversal Flaw

CVE-2026-4900 Overview

A sensitive information disclosure vulnerability has been identified in code-projects Online Food Ordering System 1.0. This weakness affects the file /dbfood/localhost.sql, which is improperly accessible to remote attackers. The vulnerability allows unauthorized access to files and directories that should be protected, potentially exposing sensitive database configuration and credentials. The exploit methodology has been publicly disclosed, increasing the risk of active exploitation against vulnerable deployments.

Critical Impact

Attackers can remotely access the exposed SQL file containing database configuration, potentially revealing credentials, database structure, and sensitive application data.

Affected Products

• code-projects Online Food Ordering System 1.0
• PHP-based web applications using similar file exposure patterns
• Deployments with publicly accessible /dbfood/ directories

Discovery Timeline

• 2026-03-26 - CVE-2026-4900 published to NVD
• 2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-4900

Vulnerability Analysis

This vulnerability is classified as CWE-425 (Direct Request, or 'Forced Browsing'), which occurs when a web application fails to properly restrict access to files or directories that should not be directly accessible by users. In this case, the Online Food Ordering System exposes the /dbfood/localhost.sql file without any authentication or authorization controls.

The exposed SQL file typically contains database initialization scripts, which may include table structures, default credentials, admin usernames, and potentially sensitive configuration data. An attacker with knowledge of this file path can directly request the resource through a web browser or automated tools, bypassing any intended access controls.

Root Cause

The root cause of this vulnerability stems from improper configuration of the web application and web server. The SQL dump file was placed within the web-accessible directory structure without implementing proper access restrictions. This is a common misconfiguration in PHP applications where developers include database files in the web root for convenience during development but fail to remove or protect them in production deployments.

The application lacks proper directory protection mechanisms such as .htaccess rules, proper file permissions, or server-side access control lists that would prevent direct access to sensitive files.

Attack Vector

The attack can be initiated remotely over the network without requiring any authentication or user interaction. An attacker simply needs to construct a direct HTTP request to the vulnerable endpoint (/dbfood/localhost.sql). The attack is straightforward and requires minimal technical expertise:

1. The attacker identifies a deployment of Online Food Ordering System 1.0
2. The attacker crafts a direct URL request to the known vulnerable path
3. The web server returns the SQL file contents without authentication
4. The attacker extracts sensitive information including database credentials and structure

Since this vulnerability has been publicly disclosed, attackers can easily enumerate vulnerable installations using search engines or automated scanning tools.

Detection Methods for CVE-2026-4900

Indicators of Compromise

• HTTP access logs showing GET requests to /dbfood/localhost.sql from external IP addresses
• Unusual download activity targeting SQL, database backup, or configuration files
• Reconnaissance patterns accessing multiple sensitive file paths in rapid succession
• Subsequent authentication attempts using credentials extracted from exposed files

Detection Strategies

• Monitor web server access logs for requests to sensitive file extensions (.sql, .bak, .conf, .env)
• Implement Web Application Firewall (WAF) rules to block access to database dump files
• Configure file integrity monitoring to alert on access to sensitive configuration directories
• Deploy endpoint detection solutions that can identify post-exploitation activities following credential theft

Monitoring Recommendations

• Enable verbose logging for all requests to the /dbfood/ directory path
• Set up real-time alerting for any successful access to files with .sql extensions in web-accessible directories
• Monitor database authentication logs for access attempts using credentials that may have been exposed
• Implement network-level monitoring for data exfiltration patterns following potential information disclosure

How to Mitigate CVE-2026-4900

Immediate Actions Required

• Remove or relocate the localhost.sql file outside of the web-accessible directory immediately
• Implement .htaccess rules or web server configuration to deny access to .sql files
• Rotate any database credentials that may have been exposed in the SQL dump file
• Audit access logs to determine if the vulnerability has already been exploited

Patch Information

No official vendor patch is currently available for this vulnerability. The recommended approach is to modify configuration settings to prevent access to sensitive files. Administrators should implement server-side access controls and ensure sensitive database files are stored outside the web root directory.

For additional technical details, refer to the GitHub CVE Report and VulDB #353642.

Workarounds

• Add Apache .htaccess rules to deny access to all .sql files: <FilesMatch "\.sql$"> Order Allow,Deny Deny from all </FilesMatch>
• For Nginx deployments, add location blocks to return 403 for sensitive file extensions
• Move all SQL dump files and database backups to a directory outside the web root (e.g., /var/backups/)
• Implement application-level access controls to validate authentication before serving any database-related files

# Configuration example for Apache - add to .htaccess or httpd.conf
# Deny access to SQL files
<FilesMatch "\.(sql|bak|old|conf|env)$">
    Require all denied
</FilesMatch>

# For Nginx - add to server block
location ~* \.(sql|bak|old|conf|env)$ {
    deny all;
    return 403;
}