Executive Summary

[{'type': 'paragraph', 'content': "CVE-2026-4474 is a Cross-Site Scripting (XSS) vulnerability found in version 1.0 of the University Management System, specifically in the file /admin_single_student_update.php. The vulnerability occurs because the st_name parameter is not properly encoded or filtered, allowing attackers to inject malicious JavaScript code that executes in the victim's browser."}, {'type': 'paragraph', 'content': 'This means that an attacker can manipulate the st_name argument to run arbitrary scripts on the web page, potentially affecting any user who views the page with the injected code.'}] [1]

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Impact Analysis

The impact of this vulnerability is significant and includes the following risks:

• Attackers can steal sensitive information such as cookies and session tokens.
• Perform unauthorized actions on behalf of the victim.
• Deface web pages or redirect users to malicious sites.
• Potentially gain control over the victim’s browser.

Exploitation does not require authentication or login, making it easier for attackers to exploit remotely.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': "This vulnerability can be detected by testing the affected URL parameter for Cross-Site Scripting (XSS) by injecting a proof-of-concept payload. Specifically, the `st_name` parameter in the URL `/admin_single_student_update.php` can be tested by injecting `<script>alert('XSS')</script>` and observing if the script executes in the browser."}, {'type': 'paragraph', 'content': 'A simple detection method is to use curl or a browser to send a request like:'}, {'type': 'list_item', 'content': 'curl "http://127.0.0.1/ums/admin_single_student_update.php?st_name=<script>alert(\'XSS\')</script>"'}, {'type': 'paragraph', 'content': 'If the alert box appears or the script is reflected unencoded in the response, the vulnerability is present.'}] [1]

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Mitigation Strategies

Immediate mitigation steps include:

• Properly encode user inputs when rendering them in HTML or JavaScript contexts to prevent execution of injected scripts.
• Implement strict input validation and filtering on the `st_name` parameter to allow only expected formats and reject or escape script tags and event handlers.
• Deploy a Content Security Policy (CSP) to restrict sources of executable scripts and prevent unauthorized inline or external script execution.
• Set secure cookie flags such as `HttpOnly` and `Secure` to protect sensitive cookies from theft via JavaScript.
• Conduct regular security audits and code reviews to detect and fix XSS and other vulnerabilities promptly.

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