CodeAstro Online Leave Application SQL Injection Vulnerability

A SQL injection vulnerability has been identified in CodeAstro Online Leave Application version 1.0. The issue arises in the file '/leaveAplicationForm.php', where the 'absence[]' parameter is manipulated, allowing attackers to inject malicious SQL queries. This vulnerability can be exploited remotely, potentially leading to unauthorized database access, data modification or deletion, and exposure of sensitive information.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to interfere with the application's database queries. This could lead to unauthorized data access, data manipulation, and in some cases, executing administrative operations on the database.

Reproduction

The vulnerability can be reproduced by sending a POST request to '/Online-Leave-Application/leaveAplicationForm.php' with the 'absence[]' parameter. The injection can be verified using payloads that exploit error-based or time-based blind SQL injection techniques, such as those that cause a delay in the response or trigger a database error.

Remediation

It is recommended to use prepared statements and parameter binding to prevent SQL injection, validate and filter user input, minimize database user permissions, and conduct regular security audits.