Compliance Impact

The provided resources do not specify how this reflected Cross-Site Scripting (XSS) vulnerability in TechStore version 1.0 affects compliance with common standards and regulations such as GDPR or HIPAA.

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Executive Summary

CVE-2025-66845 is a reflected Cross-Site Scripting (XSS) vulnerability in TechStore version 1.0. It occurs in the /user_name endpoint, where the id query parameter is directly reflected into the HTML response without any output encoding or sanitization. This allows an attacker to inject and execute arbitrary JavaScript code in the victim's browser by crafting a malicious URL containing script code in the id parameter. [1]

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Impact Analysis

This vulnerability can lead to client-side attacks such as session hijacking, where an attacker can steal a user's session cookies or perform actions on behalf of the user. It can also enable other malicious activities like defacement, phishing, or spreading malware by executing arbitrary JavaScript in the victim's browser. [1]

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Detection Guidance

You can detect this vulnerability by testing the /user_name endpoint with a crafted URL that includes a script tag in the id query parameter, for example: http://127.0.0.1:5001/user_name?id=<script>alert('XSS')</script>. If the script executes in the browser, the vulnerability is present. Using tools like curl or wget to fetch the response and inspecting if the id parameter is reflected without encoding can help detect it. For example, using curl: curl 'http://127.0.0.1:5001/user_name?id=<script>alert(1)</script>' and checking the response HTML for the injected script tag. [1]

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Mitigation Strategies

Immediate mitigation steps include implementing proper output encoding or sanitization on the id query parameter in the /user_name endpoint to prevent execution of injected scripts. Refer to the OWASP Cross-Site Scripting Prevention Cheat Sheet for best practices. Additionally, consider applying input validation, using frameworks that automatically escape output, and deploying Content Security Policy (CSP) headers to reduce the impact of potential XSS attacks. [1]

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