CVE-2024-33988 in School Attendance Monitoring System
Summary
by MITRE • 08/06/2024
Cross-Site Scripting (XSS) vulnerability in School Attendance Monitoring System and School Event Management System affecting version 1.0. An attacker could create a specially crafted URL and send it to a victim to obtain details of their session cookie via the 'Attendance', 'attenddate' and 'YearLevel' parameters in '/report/attendance_print.php'.
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Analysis
by VulDB Data Team • 03/15/2025
The Cross-Site Scripting vulnerability identified as CVE-2024-33988 affects critical components of educational management systems including the School Attendance Monitoring System and School Event Management System version 1.0. This vulnerability resides within the attendance reporting functionality where malicious actors can exploit improper input validation mechanisms to inject malicious scripts into the system's response handling. The flaw specifically manifests in the '/report/attendance_print.php' endpoint which processes three vulnerable parameters: 'Attendance', 'attenddate', and 'YearLevel' that are directly incorporated into the page output without adequate sanitization or encoding measures.
The technical exploitation of this vulnerability follows a classic XSS attack pattern where an attacker crafts a malicious URL containing script payloads designed to execute within the victim's browser context. When a user with valid session credentials accesses this crafted URL, the malicious script executes in their browser and can potentially steal session cookies through document.cookie access mechanisms. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws in web applications, representing one of the most prevalent and dangerous web application security weaknesses. The attack vector leverages the principle of trust that users place in legitimate system URLs, making it particularly effective for social engineering attacks against school administrators or staff members who might inadvertently click on malicious links.
The operational impact of this vulnerability extends beyond simple session hijacking, as it creates potential entry points for more sophisticated attacks within the educational institution's digital infrastructure. An attacker who successfully obtains session cookies could gain unauthorized access to sensitive student data, attendance records, and event management information that forms part of the school's operational database. The vulnerability affects the core functionality of attendance tracking systems which are fundamental to educational administration, potentially allowing unauthorized modifications to attendance records or access to confidential information about student participation and behavior. This represents a significant risk to student privacy and institutional data integrity, particularly in environments where such systems contain sensitive personal information and academic records.
Security mitigations for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the affected application. The recommended approach involves applying strict sanitization to all user-supplied parameters before they are processed or displayed in web responses, utilizing context-specific encoding techniques such as HTML entity encoding for output rendering. Additionally, implementing Content Security Policy (CSP) headers can provide additional defense-in-depth measures by restricting script execution within the application context. The system should also enforce proper parameter validation using regular expressions to ensure that inputs conform to expected formats and reject any potentially malicious content. According to ATT&CK framework category T1531, this vulnerability represents a technique for establishing persistent access through session hijacking, making it essential to implement robust session management controls including secure cookie attributes, proper session timeout mechanisms, and regular session regeneration practices to minimize the window of opportunity for exploitation.