Description

A security vulnerability has been detected in itsourcecode Leave Management System 1.0. This affects an unknown function of the file /module/department/controller.php. The manipulation of the argument DEPTID leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.3",
  "pubDate": "2026-09-20T06:16:49.003Z",
  "pubdate": "2026-09-20T06:16:49.003Z",
  "executiveSummary": "A critical SQL injection vulnerability has been identified within the itsourcecode Leave Management System version 1.0. The vulnerability resides in the /module/department/controller.php file, specifically stemming from improper input validation of the DEPTID argument.\nThis vulnerability allows an unauthenticated or remote attacker to inject malicious SQL commands into the backend database. Successful exploitation permits an attacker to bypass authentication mechanisms, gain unauthorized access to sensitive data, modify or delete database entries, and potentially perform administrative operations.\nThe flaw carries significant risk implications, as the application fails to adequately sanitize user-supplied data before incorporating it into database queries. Given the public disclosure of exploit vectors, the system is exposed to immediate risk of compromise by malicious actors. The primary attack vector is remote, requiring no specialized access beyond connectivity to the application's network environment, making it a high-priority security concern for deployments of this version.",
  "technicalDetails": "The vulnerability is classified as a classic SQL injection flaw located in the /module/department/controller.php script. The root cause is the direct concatenation of user-provided input from the DEPTID parameter into a database query string without prior sanitization, parameterization, or the use of prepared statements.\nThe attack flow commences when an attacker identifies the DEPTID parameter, which is intended to handle department-specific identifiers. By manipulating this parameter to include crafted SQL syntax (e.g., `' OR 1=1--`), the attacker can break out of the intended query structure. Because the application logic does not employ an abstraction layer for database interactions, the malicious payload is executed directly by the database management system (DBMS).\nExploitation is straightforward and can be initiated remotely via standard HTTP GET or POST requests. An attacker can append SQL keywords such as UNION, SELECT, or SLEEP to the DEPTID argument to infer the database structure, extract administrative credentials, or dump sensitive employee records. For instance, using a UNION-based attack, an attacker can retrieve data from other tables within the database schema, bypassing the application's intended functional boundaries.\nThe vulnerable component is the controller responsible for department-related logic, which fails to enforce strict type checking or input filtering on the DEPTID parameter. Since the application fails to validate whether the input is a strictly numerical identifier, it permits the injection of arbitrary SQL tokens. The impact post-exploitation is severe; beyond data theft, an attacker may achieve complete control over the application's data layer. In environments where the database user possesses elevated system privileges, the attack could potentially be extended to execute operating system commands or perform large-scale data exfiltration, resulting in a total compromise of the application's integrity and confidentiality."
}