CVE-2024-4526 Overview
CVE-2024-4526 is a reflected cross-site scripting (XSS) vulnerability in Campcodes Complete Web-Based School Management System 1.0. The flaw resides in /view/student_payment_details3.php, where the month parameter is rendered without proper output encoding. An unauthenticated remote attacker can craft a malicious URL that injects arbitrary JavaScript into the response. When a victim follows the link, the script executes in the browser under the application's origin. The issue is tracked in VulDB as entry VDB-263129 and has been publicly disclosed with technical details available on GitHub.
Critical Impact
Successful exploitation allows attackers to steal session cookies, hijack administrative sessions, or perform actions on behalf of authenticated users of the school management portal.
Affected Products
- Campcodes Complete Web-Based School Management System 1.0
- /view/student_payment_details3.php endpoint
- Deployments exposing the vulnerable month GET parameter
Discovery Timeline
- 2024-05-06 - CVE-2024-4526 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-4526
Vulnerability Analysis
The vulnerability is a reflected cross-site scripting issue classified under CWE-79. The /view/student_payment_details3.php script accepts a month parameter from the query string and echoes it back into the HTML response without sanitization or contextual encoding. A remote attacker can weaponize this behavior by embedding JavaScript payloads in the parameter value. Because the attack requires only that a target click a crafted link, phishing and social engineering are the primary delivery vectors. Successful execution runs within the trusted origin of the school portal, enabling session theft, credential harvesting through fake forms, and unauthorized actions against the application. The exploit has been publicly disclosed with proof-of-concept documentation.
Root Cause
The root cause is missing input validation and output encoding on the month parameter. Server-side PHP code passes user-controlled input directly into HTML output without applying functions such as htmlspecialchars() or context-aware escaping. This violates standard secure coding guidance for defending against injection into HTML contexts.
Attack Vector
Exploitation occurs over the network and requires user interaction. An attacker crafts a URL targeting /view/student_payment_details3.php with a JavaScript payload placed in the month query parameter. The victim, typically an authenticated administrator or staff user, clicks the link from email, chat, or a compromised page. The payload executes in the victim's browser session, giving the attacker access to cookies, DOM state, and any actions the user is authorized to perform.
No working exploit code is republished here. Refer to the public XSS vulnerability report on GitHub for technical proof-of-concept details.
Detection Methods for CVE-2024-4526
Indicators of Compromise
- HTTP requests to /view/student_payment_details3.php containing <script>, onerror=, onload=, or URL-encoded equivalents in the month parameter
- Outbound requests from user browsers to attacker-controlled domains immediately after visiting the payment details page
- Unexpected session token reuse from geographically distant IP addresses following clicks on external links
Detection Strategies
- Deploy a web application firewall (WAF) rule that inspects the month query parameter for HTML tags, JavaScript event handlers, and common XSS obfuscation patterns
- Enable server-side request logging on the school management portal and alert on 200 responses where reflected parameter values contain script markers
- Correlate email gateway logs with web access logs to identify links pointing to the vulnerable endpoint with suspicious query strings
Monitoring Recommendations
- Monitor authentication logs for administrative session anomalies such as concurrent logins or IP hopping following portal access
- Track browser Content Security Policy (CSP) violation reports if a CSP is deployed in report-only mode
- Alert on repeated 4xx or 5xx responses from /view/student_payment_details3.php that may indicate exploitation attempts
How to Mitigate CVE-2024-4526
Immediate Actions Required
- Restrict access to /view/student_payment_details3.php to trusted networks or authenticated sessions using web server access controls
- Deploy a WAF rule blocking HTML tags and JavaScript event handlers in the month parameter until a code fix is applied
- Notify administrative users to avoid clicking unsolicited links referencing the school portal
Patch Information
No vendor patch has been published in the referenced advisories. Organizations running Campcodes Complete Web-Based School Management System 1.0 should apply source-level fixes by validating the month parameter against an allowlist of expected values (for example, month names or numeric ranges) and applying htmlspecialchars($input, ENT_QUOTES, 'UTF-8') before rendering it in HTML. Track updates through the VulDB entry for this issue.
Workarounds
- Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins
- Set the HttpOnly and Secure flags on session cookies to reduce the impact of script-based cookie theft
- Add input validation at the reverse proxy or WAF layer to enforce a numeric or alphabetic allowlist on the month parameter
- Consider migrating away from unmaintained software when vendor patches are unavailable
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
