CVE-2025-29430 in Online Class and Exam Scheduling System
Summary
by MITRE • 03/17/2025
Code-projects Online Class and Exam Scheduling System V1.0 is vulnerable to Cross Site Scripting (XSS) in /pages/room.php via the id and rome parameters.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/23/2025
The vulnerability identified as CVE-2025-29430 affects the Code-projects Online Class and Exam Scheduling System version 1.0, specifically targeting the /pages/room.php endpoint. This represents a critical security flaw that exposes the system to cross site scripting attacks through improper input validation and sanitization mechanisms. The vulnerability manifests when the application fails to adequately filter user-supplied data passed through the id and rome parameters, creating an avenue for malicious actors to inject malicious scripts into the application's response. This type of vulnerability falls under CWE-79 which defines improper neutralization of input during web page generation, making it a classic example of client-side code injection that can have severe consequences for both application integrity and user security.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize or escape user input before incorporating it into dynamically generated web content. When the id and rome parameters are passed to the room.php page, the system directly incorporates these values into HTML output without appropriate encoding or validation processes. This allows attackers to craft malicious payloads that can execute within the context of other users' browsers, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability exists because the application does not employ proper output encoding techniques or input validation controls that would prevent the execution of unintended JavaScript code within the web application's response.
The operational impact of this vulnerability extends beyond simple data corruption or service disruption, as it fundamentally compromises the security posture of the entire scheduling system. An attacker who successfully exploits this XSS vulnerability could potentially access sensitive user information, manipulate class scheduling data, or gain unauthorized access to administrative functions. The attack surface is particularly concerning given that this system handles educational scheduling information which may contain personal identifiable information, academic records, and institutional data. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1531 which focuses on establishing persistence through malicious code injection, and T1071.001 which covers application layer protocol usage for command and control communications. The implications suggest that an attacker could leverage this weakness to establish a foothold within the educational institution's digital infrastructure.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The most effective immediate solution involves sanitizing all user-supplied parameters through proper HTML entity encoding before incorporating them into web page content, which directly addresses the root cause identified in CWE-79. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be loaded. The system should also employ proper parameter validation to ensure that only expected data types and formats are accepted through the id and rome parameters. Regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities throughout the application codebase, as this represents a pattern that commonly occurs in web applications lacking robust input sanitization controls. Implementation of secure coding practices and regular security training for development teams can help prevent similar issues from occurring in future releases of the application.