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CVE-2025-51092: SQL Injection Vulnerability in LogIn-SignUp Project by VishnuSivadasVS

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Overview

The CVE-2025-51092 vulnerability is a critical security flaw found in the LogIn-SignUp project by VishnuSivadasVS. This vulnerability is particularly concerning due to the potential for system compromise or data leakage. Widespread among organizations that utilize the LogIn-SignUp project, this vulnerability can lead to unauthorized access to sensitive information and potentially, system control. As such, immediate attention and mitigation are crucial for all entities using the affected software.

Vulnerability Summary

CVE ID: CVE-2025-51092
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System Compromise, Data Leakage

Affected Products

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Product | Affected Versions

LogIn-SignUp Project by VishnuSivadasVS | All versions prior to patch

How the Exploit Works

The vulnerability lies in the unsafe construction of SQL queries in the DataBase.php file of the LogIn-SignUp project. The logIn() and signUp() functions build queries by directly concatenating user input and unvalidated table names, without using prepared statements. This allows an attacker to manipulate the SQL query, thereby causing SQL Injection. While a prepareData() function exists, it is insufficient to prevent SQL injection as it does not sanitize the table name, leaving the system vulnerable to attacks.

Conceptual Example Code

An attacker could exploit this vulnerability by sending a malicious SQL statement in the user input. Here is a conceptual example of how the vulnerability might be exploited:

POST /login HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=admin' OR '1'='1'; -- &password=123456

In this example, the SQL query becomes: `SELECT * FROM Users WHERE username = ‘admin’ OR ‘1’=’1′; –‘ AND password = ‘123456’`. The SQL injection effectively comments out the password check, allowing the attacker to bypass authentication.

Mitigation Guidance

A vendor patch for the CVE-2025-51092 vulnerability has been released and its immediate application is highly recommended. In cases where immediate patching is not feasible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation. However, these measures should not replace patching the software as the ultimate remediation step.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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