CVE-2024-4682 in Complete Web-Based School Management System
Summary
by MITRE • 05/14/2024
A vulnerability has been found in Campcodes Complete Web-Based School Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /view/exam_timetable_update_form.php. The manipulation of the argument exam leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-263623.
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Analysis
by VulDB Data Team • 03/31/2025
The vulnerability identified as CVE-2024-4682 represents a critical cross site scripting flaw within the Campcodes Complete Web-Based School Management System version 1.0. This security weakness resides in the /view/exam_timetable_update_form.php file where improper input validation allows malicious actors to inject malicious scripts through the exam parameter. The vulnerability's classification as problematic indicates a significant risk to the system's integrity and user data confidentiality. The attack vector is remotely exploitable, meaning that threat actors can leverage this flaw without requiring physical access to the target system, making it particularly dangerous in web-based environments where users interact with the application through standard web browsers.
The technical implementation of this XSS vulnerability stems from inadequate sanitization of user-supplied input within the exam parameter of the exam_timetable_update_form.php script. When the application processes the exam argument without proper validation or encoding, it fails to distinguish between legitimate user input and potentially malicious script code. This fundamental flaw in input handling creates an opening for attackers to inject javascript code that executes in the context of other users' browsers. The vulnerability operates under CWE-79 which specifically addresses cross site scripting flaws in web applications, where insufficient validation of user-supplied data leads to unauthorized script execution. The attack can be executed through various means including crafted URLs, malicious form submissions, or even through social engineering techniques that trick users into clicking on malicious links.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform a range of malicious activities including session hijacking, credential theft, data exfiltration, and unauthorized administrative actions within the school management system. Since the application is designed for educational institutions, the compromised data could include sensitive student information, academic records, and personal details of staff members. The remote exploitability means that attackers can target users from any location with internet access, potentially compromising multiple installations of the software. The public disclosure of the exploit (VDB-263623) significantly increases the risk as threat actors can readily implement the attack without requiring advanced technical skills or custom exploit development. This vulnerability directly maps to several ATT&CK techniques including T1566 for social engineering and T1059 for command and scripting interpreter usage, as attackers can leverage the XSS to execute malicious scripts and potentially escalate privileges within the application.
Organizations utilizing this school management system should immediately implement multiple layers of defense to mitigate the risk posed by CVE-2024-4682. The primary mitigation strategy involves implementing proper input validation and output encoding mechanisms within the affected php file to sanitize all user-supplied data before processing. This includes implementing strict parameter validation for the exam argument and ensuring that all dynamic content is properly escaped before being rendered in the browser. Additionally, organizations should deploy web application firewalls to detect and block malicious requests targeting this specific vulnerability. The implementation of content security policies and proper HTTP headers can further reduce the impact of successful XSS attacks by limiting script execution capabilities within the browser environment. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities within the application codebase, while user education regarding suspicious links and web traffic can help prevent exploitation through social engineering vectors. The remediation process should also include monitoring for any indicators of compromise that may have occurred during the period when the vulnerability was publicly known and exploitable, ensuring comprehensive security posture restoration.