CVE-2026-105173 in Human Resource Management
Summary
by MITRE • 10/05/2026
A flaw has been found in code-projects Human Resource Management 1.0. This affects an unknown part of the file /humanresourcemanagementsystem/src/store/EventStore.php of the component Event Creation. Executing a manipulation of the argument eventSubject can lead to cross site scripting. The attack may be launched remotely. The exploit has been published and may be used.
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Analysis
by VulDB Data Team • 10/05/2026
The vulnerability identified in code-projects Human Resource Management version 1.0 represents a significant security risk within its internal administrative interface, specifically targeting the Event Creation component. This flaw resides in the file located at /humanresourcemanagementsystem/src/store/EventStore.php and is triggered by improper handling of user-supplied input during the creation of calendar or organizational events. The core technical deficiency lies in the application's failure to adequately sanitize or encode data before it is processed for storage or subsequent rendering, allowing an attacker to inject malicious script payloads into the event subject field. This type of defect is classically categorized under CWE-79, which defines Improper Neutralization of Input During Web Page Generation, commonly known as Cross-Site Scripting (XSS). The presence of this vulnerability indicates that the development team did not implement robust input validation or output encoding mechanisms for fields that are likely displayed back to other users within the system.
From an operational perspective, this flaw enables a remote attacker to execute arbitrary JavaScript code in the context of the victim's browser session without requiring prior authentication if the event creation endpoint is accessible anonymously, or with limited privileges if it requires basic user access. Since human resource management systems often contain sensitive organizational data and are accessed by multiple employees, the impact of a successful cross-site scripting attack can be severe. An attacker could steal session cookies, hijack administrative sessions, perform actions on behalf of legitimate users such as modifying event details or deleting records, or even redirect users to phishing sites designed to harvest credentials. The fact that an exploit has been published and is available for use significantly lowers the barrier to entry for malicious actors, increasing the likelihood of automated attacks against systems running this specific version of the software.
The attack vector aligns with several techniques described in the MITRE ATT&CK framework, particularly those related to client-side code injection and session hijacking. By leveraging XSS, an adversary can bypass traditional network-based security controls that do not inspect application-layer traffic for script injections. The persistence of this vulnerability suggests a lack of secure coding practices during the initial development phase, where input sanitization was overlooked in favor of functionality over security. This is a common issue in open-source or rapidly developed web applications where comprehensive threat modeling and code review processes may be insufficient.
To mitigate this risk, immediate action is required to patch the underlying application logic within EventStore.php. Developers must implement strict input validation that rejects any non-alphanumeric characters except for those strictly necessary for event subjects, such as standard punctuation marks. Furthermore, all user-supplied data rendered in HTML contexts must undergo proper encoding using context-aware output encoding techniques to ensure that special characters are converted into their safe entity equivalents before being sent to the browser. If a patch is not immediately available from the vendor, administrators should consider restricting access to the event creation functionality through network-level controls or web application firewalls configured with rulesets capable of detecting and blocking common XSS payloads. Regular security audits and static code analysis tools integrated into the development pipeline are recommended to prevent similar vulnerabilities in future updates.