CVE-2026-76799: Login Registration System SQLi Vulnerability

CVE-2026-76799 Overview

CVE-2026-76799 is an information disclosure vulnerability in code-projects Login Registration System 1.0. The flaw resides in the SQL Database Backup Handler component, specifically the file /loginsystem/database/login_registration_system.sql. Attackers can access this file remotely without authentication, exposing the application's database schema and any embedded data. The weakness maps to [CWE-425: Direct Request (Forced Browsing)]. Public exploit details have been released, increasing the likelihood of opportunistic scanning and abuse against internet-exposed installations.

Critical Impact
Unauthenticated remote attackers can retrieve the raw SQL database backup file, disclosing schema definitions, user records, and credential material stored within the Login Registration System.

Affected Products

code-projects Login Registration System 1.0
Deployments exposing the /loginsystem/database/ directory to untrusted networks
Web servers hosting the application without directory access restrictions

Discovery Timeline

2026-08-20 - CVE-2026-76799 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-76799

Vulnerability Analysis

The vulnerability stems from the application shipping a raw SQL backup file inside a web-accessible directory. The file /loginsystem/database/login_registration_system.sql is served directly by the web server without authentication, session validation, or access control checks. An attacker who requests this URL over HTTP or HTTPS receives the complete SQL dump.

SQL backup files commonly contain CREATE TABLE statements, INSERT statements with production-like data, and hashed or plaintext credentials used for testing. Exposure of this artifact hands adversaries a full map of the database structure. They can then target additional endpoints with tailored SQL injection or credential-stuffing attempts.

The issue is a configuration and design flaw rather than a code defect. The application distribution places sensitive assets in the same document root served to unauthenticated clients. The EPSS score is 0.396% with a percentile of 33.048.

Root Cause

The root cause is improper access control on static resources within the web root. The developer bundled the SQL schema file alongside application code and did not add web server rules or .htaccess entries to block direct retrieval. [CWE-425] describes exactly this pattern: a resource is accessible through a direct URL that should require authorization.

Attack Vector

Exploitation requires only network access to the vulnerable host. An attacker sends an HTTP GET request to the known path and receives the file contents. No authentication, user interaction, or specialized tooling is needed. Automated scanners can identify vulnerable installations by fingerprinting the application and requesting the fixed file path.

The vulnerability manifests through direct file retrieval rather than code execution. See the GitHub Security Advisory and VulDB CVE-2026-76799 entries for reference details.

Detection Methods for CVE-2026-76799

Indicators of Compromise

Web server access logs containing GET requests to /loginsystem/database/login_registration_system.sql
HTTP 200 responses returning application/sql, application/octet-stream, or text/plain content types for .sql files
Requests to the /loginsystem/database/ directory from unfamiliar user agents or automated scanning tools

Detection Strategies

Search web server and reverse proxy logs for any successful retrieval of files matching *.sql under application document roots
Alert on HTTP requests targeting known sensitive filenames such as login_registration_system.sql, backup.sql, or dump.sql
Correlate directory enumeration patterns from a single source IP against the login and registration endpoints

Monitoring Recommendations

Enable directory listing detection and forced browsing alerts in web application firewall (WAF) rules
Track outbound response sizes for static .sql requests, since exfiltration events return large payloads
Review historical logs for prior access to the affected path to identify pre-disclosure exploitation attempts

How to Mitigate CVE-2026-76799

Immediate Actions Required

Remove login_registration_system.sql and any other database backup files from the web root immediately
Restrict access to the /loginsystem/database/ directory using web server configuration
Rotate credentials for any accounts referenced in the exposed SQL file, assuming compromise
Audit web server logs to determine whether the file was already retrieved by unauthorized parties

Patch Information

No official vendor patch is currently listed in the enriched CVE data. Administrators should apply configuration hardening and monitor the Code Projects Resource Hub and VulDB Vulnerability Details for updates from the maintainer.

Workarounds

Move all database backup and schema files outside of the web-accessible document root
Configure the web server to deny requests for .sql, .bak, and .dump file extensions
Apply IP allowlisting to administrative and database-related paths where feasible
Deploy WAF rules that block requests targeting known backup filenames and database directories

bash

# Apache: block direct access to SQL files via .htaccess
<FilesMatch "\.(sql|bak|dump|old)$">
    Require all denied
</FilesMatch>

# Nginx: deny requests to the database directory and SQL extensions
location ~* /loginsystem/database/ {
    deny all;
    return 403;
}

location ~* \.(sql|bak|dump|old)$ {
    deny all;
    return 403;
}