Cybersecurity Vulnerabilities

CVE-2025-63879: Critical XSS Vulnerability Plagues E-commerce Project v1.0

Overview

CVE-2025-63879 describes a reflected cross-site scripting (XSS) vulnerability found in the E-commerce Project version 1.0 and earlier. This flaw allows attackers to inject malicious JavaScript code into a user’s browser session by crafting a specific URL with a payload in the ‘id’ parameter. Exploitation of this vulnerability could lead to session hijacking, defacement, or the theft of sensitive user data.

Technical Details

The vulnerability resides within the /ecommerce/products.php component. The application fails to properly sanitize the ‘id’ parameter before reflecting it back in the HTML output. An attacker can craft a URL like this:

/ecommerce/products.php?id=<script>alert('XSS')</script>

When a user clicks on this malicious link (or is tricked into visiting it), the JavaScript code (<script>alert('XSS')</script> in this example) will be executed within their browser, in the context of the vulnerable website.

CVSS Analysis

As the CVE description states, the CVSS score and severity are currently listed as N/A. However, given the nature of reflected XSS, if properly scored, the severity would likely be categorized as medium to high, depending on the scope and impact. The lack of scoring might indicate it’s a newly discovered vulnerability, still being evaluated.

Possible Impact

Successful exploitation of this XSS vulnerability can have several serious consequences:

  • Session Hijacking: An attacker can steal a user’s session cookie and gain unauthorized access to their account.
  • Website Defacement: Malicious scripts can modify the content of the website, potentially damaging its reputation.
  • Malware Distribution: The injected JavaScript can redirect users to malicious websites, leading to malware infections.
  • Data Theft: Sensitive user data, such as login credentials or personal information, can be stolen.

Mitigation or Patch Steps

To mitigate this vulnerability, the following steps should be taken:

  • Input Validation and Sanitization: Implement robust input validation and sanitization on the id parameter within the /ecommerce/products.php component. All user-supplied input should be properly encoded before being displayed in the HTML output. Use appropriate encoding functions like htmlspecialchars() in PHP.
  • Output Encoding: Encode all dynamic content that is displayed on the page.
  • Web Application Firewall (WAF): Implement a WAF to detect and block malicious requests containing XSS payloads.
  • Upgrade E-commerce Project: Upgrade to a patched version of E-commerce Project if one becomes available. Contact the vendor for information on available updates.
  • Content Security Policy (CSP): Implement a strong Content Security Policy to restrict the sources from which the browser can load resources, limiting the impact of XSS attacks.

Cybersecurity specialist and founder of Gowri Shankar Infosec - a professional blog dedicated to sharing actionable insights on cybersecurity, data protection, server administration, and compliance frameworks including SOC 2, PCI DSS, and GDPR.

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