CVE-2024-33993 in School Event Management System
Summary
by MITRE • 08/06/2024
Cross-Site Scripting (XSS) vulnerability in School Event Management System affecting version 1.0. An attacker could create a specially crafted URL and send it to a victim to obtain their session details via the 'view' parameter in /candidate/index.php'.
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Analysis
by VulDB Data Team • 03/15/2025
The CVE-2024-33993 vulnerability represents a critical cross-site scripting flaw within the School Event Management System version 1.0 that poses significant security risks to users and administrators. This vulnerability exists in the candidate index page where the application fails to properly sanitize user input passed through the 'view' parameter, creating an exploitable entry point for malicious actors to inject arbitrary script code into the web application's response. The flaw specifically manifests when the system processes the 'view' parameter without adequate validation or encoding mechanisms, allowing attackers to craft malicious URLs that can execute scripts in the context of a victim's browser session.
The technical exploitation of this vulnerability follows a standard XSS attack pattern where an attacker crafts a malicious URL containing script payloads that are then executed when a victim clicks on the link or visits the page. The vulnerability stems from improper input validation and output encoding practices within the application's candidate management module, which directly violates security principles outlined in the OWASP Top Ten 2021 and CWE-79 - Improper Neutralization of Input During Web Page Generation. The attack vector specifically targets the 'view' parameter in the /candidate/index.php endpoint, making it a server-side vulnerability that can be leveraged to steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites.
The operational impact of this vulnerability extends beyond simple script execution as it enables session hijacking and privilege escalation attacks that can compromise the entire user authentication system. When a victim's browser processes the malicious script, it can capture session tokens and transmit them to the attacker's server, allowing unauthorized access to the application with the victim's privileges. This vulnerability particularly affects the school event management system's candidate management functionality, potentially enabling attackers to view sensitive information, modify candidate records, or even gain administrative access if the victim holds elevated privileges. The attack can be executed through social engineering techniques where victims are tricked into clicking malicious links, making it particularly dangerous in educational environments where users may not be security-aware.
Mitigation strategies for CVE-2024-33993 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's codebase. The primary defense involves sanitizing all user-supplied input, particularly parameters like 'view' that are directly reflected in the application's output, by implementing proper HTML entity encoding and input validation routines. Security measures should include the implementation of Content Security Policy headers to prevent unauthorized script execution, the adoption of secure coding practices that follow the OWASP Secure Coding Practices, and the immediate patching of the vulnerable version 1.0 of the School Event Management System. Organizations should also implement regular security testing including automated vulnerability scanning and manual penetration testing to identify similar flaws in other application components. The remediation process must include thorough code review of the candidate/index.php file to ensure all parameters are properly validated and encoded before being processed or displayed, aligning with the ATT&CK framework's T1566.001 technique for initial access through spearphishing and the T1071.001 technique for application layer protocol usage. Additionally, implementing proper session management controls and monitoring for suspicious activities can help detect and prevent exploitation attempts.