CVE-2026-4223 in Payroll Management System
Summary
by MITRE • 03/16/2026
A vulnerability was identified in itsourcecode Payroll Management System 1.0. This issue affects some unknown processing of the file /manage_employee.php. Such manipulation of the argument ID leads to sql injection. The attack can be executed remotely. The exploit is publicly available and might be used.
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Analysis
by VulDB Data Team • 03/21/2026
The vulnerability CVE-2026-4223 represents a critical sql injection flaw within the itsourcecode Payroll Management System version 1.0 that specifically targets the /manage_employee.php file. This vulnerability stems from inadequate input validation and sanitization mechanisms within the application's processing logic, creating an exploitable pathway for malicious actors to manipulate database operations through crafted input parameters. The flaw manifests when the application fails to properly escape or validate the ID argument parameter, allowing attackers to inject malicious sql code that executes within the database context.
The technical implementation of this vulnerability aligns with CWE-89, which categorizes sql injection as a severe weakness in application security where untrusted data is incorporated into sql queries without proper sanitization. The attack vector operates remotely, eliminating the need for physical access to the system and enabling exploitation from any network location. This remote accessibility significantly increases the attack surface and potential impact, as threat actors can leverage publicly available exploits to target vulnerable installations without requiring insider knowledge or privileged access. The vulnerability's presence in a payroll management system particularly concerning since it handles sensitive employee financial and personal data.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete system compromise and data destruction capabilities. Successful exploitation could enable attackers to extract confidential payroll information, manipulate employee records, modify salary data, or even escalate privileges within the database environment. The potential for lateral movement within the organization's network increases significantly as attackers can use the compromised system as a foothold for further infiltration. Additionally, the financial implications are substantial given that payroll systems contain highly sensitive information including social security numbers, bank account details, and compensation data that could be monetized through identity theft or corporate espionage activities.
Mitigation strategies should focus on implementing comprehensive input validation, parameterized queries, and proper output encoding to prevent sql injection attacks. The application should employ prepared statements with bound parameters to ensure that user input cannot alter the sql query structure. Network-level protections including web application firewalls and intrusion detection systems can provide additional monitoring and blocking capabilities. Regular security assessments and code reviews should be implemented to identify similar vulnerabilities throughout the application codebase. The principle of least privilege should be enforced by restricting database user permissions to only essential operations. Organizations should also implement automated patch management processes to ensure timely remediation of known vulnerabilities. According to ATT&CK framework, this vulnerability maps to T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS) as attackers may leverage publicly available exploits and potentially use dns tunneling for command and control communications. The vulnerability demonstrates the critical importance of proper input validation and secure coding practices in preventing remote code execution and data breaches in enterprise applications.