CVE-2024-4527 Overview
CVE-2024-4527 is a reflected cross-site scripting (XSS) vulnerability in Campcodes Complete Web-Based School Management System 1.0. The flaw resides in the /view/student_payment_details2.php script, which fails to sanitize the index request parameter before reflecting it in the response. Remote attackers can craft a malicious URL that executes arbitrary JavaScript in a victim's browser session. The issue is tracked as VDB-263130 and has been publicly disclosed with exploit details available. The vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation.
Critical Impact
Successful exploitation allows attackers to execute arbitrary script in the context of an authenticated user's browser, enabling session theft, credential harvesting, and unauthorized actions within the school management portal.
Affected Products
- Campcodes Complete Web-Based School Management System 1.0
- Component: /view/student_payment_details2.php
- Vulnerable parameter: index
Discovery Timeline
- 2024-05-06 - CVE-2024-4527 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-4527
Vulnerability Analysis
The vulnerability is a reflected XSS flaw in the student payment reporting workflow. The student_payment_details2.php endpoint accepts the index HTTP parameter and includes its value in the rendered HTML response without proper output encoding or input validation. When an attacker supplies JavaScript payloads through this parameter, the browser executes the injected code within the origin of the vulnerable application.
Because the application is a school management platform, victims are typically administrators, teachers, or students with active sessions. Injected scripts can access session cookies, perform actions on behalf of the victim, or redirect users to phishing pages hosted on attacker-controlled infrastructure. Exploitation requires user interaction, such as clicking a crafted link delivered through email, chat, or a malicious webpage.
Root Cause
The root cause is missing input sanitization and output encoding for the index GET parameter. The application concatenates user-supplied data directly into the HTML response without applying context-appropriate escaping such as htmlspecialchars() in PHP. This violates secure output handling requirements defined in [CWE-79].
Attack Vector
An attacker delivers a URL of the form /view/student_payment_details2.php?index=<payload> to a victim with an authenticated session. When the victim visits the link, the browser renders the reflected payload and executes the attacker's script. No prior authentication is required to craft the exploit, but the impact depends on the privilege of the victim who triggers it. Additional technical details are available in the GitHub XSS Vulnerability Report and the VulDB entry #263130.
No verified proof-of-concept code is republished here. Refer to the linked advisory for the full payload sample.
Detection Methods for CVE-2024-4527
Indicators of Compromise
- Web server access logs containing requests to /view/student_payment_details2.php with encoded HTML or JavaScript characters in the index parameter (for example %3Cscript%3E, onerror=, javascript:).
- Referer headers pointing to unfamiliar external domains preceding requests to the vulnerable endpoint.
- Unexpected outbound requests from user browsers to attacker-controlled hosts shortly after visiting the application.
Detection Strategies
- Deploy a Web Application Firewall (WAF) rule that inspects the index parameter for HTML tags, event handlers, and script-related keywords.
- Enable server-side request logging with full query string capture and alert on parameter values containing angle brackets or javascript: schemes.
- Correlate authentication events with anomalous session activity, such as sudden account setting changes following a link click.
Monitoring Recommendations
- Monitor HTTP 200 responses to /view/student_payment_details2.php that echo suspicious index values within the response body.
- Track Content Security Policy (CSP) violation reports if a policy is enforced, focusing on inline script violations tied to the payments module.
- Review browser telemetry from administrator workstations for unexpected script execution or cookie access on the school management domain.
How to Mitigate CVE-2024-4527
Immediate Actions Required
- Restrict access to the Campcodes Complete Web-Based School Management System behind a VPN or IP allowlist until a patched build is available.
- Deploy WAF signatures that block reflected XSS payloads in the index parameter of /view/student_payment_details2.php.
- Advise users, especially administrators, to avoid clicking untrusted links referencing the application and to log out of active sessions when not in use.
Patch Information
No official vendor patch has been published in the referenced advisories. Administrators should monitor the Campcodes project pages and the VulDB entry #263130 for update notices. Where an official fix is unavailable, apply source-level remediation by encoding all reflected parameters using htmlspecialchars($input, ENT_QUOTES, 'UTF-8') before output.
Workarounds
- Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
- Apply server-side input validation that rejects non-numeric or unexpected values for the index parameter, if the parameter is intended to reference a record ID.
- Configure session cookies with the HttpOnly and Secure flags to reduce the impact of successful script injection.
- Enable the SameSite=Strict cookie attribute to limit cross-site request forgery chained with XSS.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
