CVE-2023-36376 in Hostel Management System
Summary
by MITRE • 07/10/2023
Cross-Site Scripting (XSS) vulnerability in Hostel Management System v.2.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the add course section.
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Analysis
by VulDB Data Team • 07/27/2023
The CVE-2023-36376 vulnerability represents a critical cross-site scripting flaw within the Hostel Management System version 2.1, exposing the application to persistent security risks that could compromise user sessions and data integrity. This vulnerability specifically targets the add course section of the web application, where insufficient input validation and output encoding mechanisms fail to properly sanitize user-supplied data before rendering it within the application's web interface. The flaw enables attackers to inject malicious scripts that execute in the context of other users' browsers, creating a persistent threat vector that can be exploited across multiple user sessions. The vulnerability's classification under CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') highlights the fundamental failure in the application's security architecture to properly handle dynamic content generation.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing script code within the course addition form fields, typically targeting parameters such as course names, descriptions, or other user-editable content sections. When the application processes this malformed input without proper sanitization and subsequently renders it on the web page, the injected scripts execute within the victim's browser context, potentially stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions on behalf of authenticated users. The attack vector operates through the standard XSS exploitation methodology where malicious input is accepted by the server-side application, stored in the database, and then retrieved and displayed without proper HTML escaping or context-appropriate encoding. This vulnerability directly aligns with ATT&CK technique T1531 - Account Access Removal and T1203 - Exploitation for Client Execution, as it enables attackers to leverage the compromised application to execute malicious code in users' browsers.
The operational impact of CVE-2023-36376 extends beyond simple script execution, potentially enabling attackers to establish persistent access to the system through session hijacking, credential theft, or privilege escalation opportunities. An attacker could craft payloads that redirect victims to phishing sites, steal authentication tokens, or manipulate the application's functionality to perform unauthorized administrative actions. The vulnerability's presence in the course management section suggests potential exposure of sensitive educational data, including student information, course materials, or institutional data that could be accessed or modified by unauthorized parties. Organizations relying on this system face significant risk of data breaches, regulatory compliance violations, and reputational damage if this vulnerability remains unpatched. The exploitation of such vulnerabilities can lead to broader security incidents including lateral movement within the network, as attackers may use the compromised application as a foothold to access other systems or escalate privileges within the host environment.
Mitigation strategies for CVE-2023-36376 require immediate implementation of comprehensive input validation and output encoding measures throughout the application's data handling pipeline. Organizations should implement strict sanitization of all user inputs, particularly in form fields that are rendered back to users, utilizing context-appropriate encoding techniques such as HTML entity encoding, JavaScript escaping, and proper content security policy headers. The recommended approach involves implementing a robust input validation framework that rejects or sanitizes potentially malicious content before storage, combined with output encoding that ensures any stored data is properly escaped when rendered in different contexts. Security patches should be applied immediately to update the Hostel Management System to a version that addresses this vulnerability, while organizations should also implement web application firewalls and monitoring systems to detect potential exploitation attempts. Additionally, regular security testing including dynamic application security testing and manual penetration testing should be conducted to identify similar vulnerabilities in other application components, as this vulnerability represents a systemic issue in the application's security architecture that may affect other input fields or sections of the system.