Recently, a new vulnerability has been discovered in the SourceCodester Online Eyewear Shop version 1.. Tracked as CVE-2024-9906, this issue is particularly concerning because it allows attackers to carry out Cross Site Scripting (XSS) attacks through the admin inventory view page. In this post, we'll explain the vulnerability, show how the exploit works, and offer guidance on mitigation steps. This article is written for site administrators and security enthusiasts looking for a clear, direct explanation.
What is CVE-2024-9906?
CVE-2024-9906 is a reflected XSS vulnerability found in the administration panel of the SourceCodester Online Eyewear Shop 1. application. The problem lies in how user input is handled via the Code parameter on the following URL:
/admin/?page=inventory/view_inventory&id=2
By manipulating the Code argument, an attacker can inject malicious JavaScript, which is then executed by the victim’s browser.
Where Does the Vulnerability Happen?
The vulnerability occurs because input from the Code parameter is not properly sanitized before being output to the HTML page. This means that special characters, like < and >, are not properly escaped, allowing attackers to run arbitrary scripts.
For example, visiting
http://example.com/admin/?page=inventory/view_inventory&id=2&Code=1
is safe. But if an attacker sends
http://example.com/admin/?page=inventory/view_inventory&id=2&Code=<script>alert(document.cookie)</script>;
and tricks a logged-in admin user to click on it, their browser will execute the JavaScript, potentially exposing authentication cookies or other sensitive data.
Here's a simple PoC that can be used to exploit the vulnerability
<!-- Malicious URL payload -->
http://victim.com/admin/?page=inventory/view_inventory&id=2&Code=<script>alert(document.domain)</script>;
Example vulnerable PHP code snippet
// Vulnerable code in view_inventory.php (simplified)
echo "Inventory Code: " . $_GET['Code'];
With no sanitization, this outputs any script injected in the Code parameter directly into the page.
Run arbitrary JavaScript in the context of the admin panel.
- Redirect victims to phishing/malware sites.
Deface admin sections.
Since this is an admin-only page, the impact is critical because administrative credentials and actions could be compromised.
References
- Vuldb Entry – CVE-2024-9906
- Original Disclosure on Exploit-DB
- SourceCodester Project Page
- OWASP XSS Reference
How to Fix
To mitigate this issue, the application must ensure all user data is sanitized before being output to the page. Here’s a simple way to fix the vulnerable code:
Fixed PHP code example
echo "Inventory Code: " . htmlspecialchars($_GET['Code'], ENT_QUOTES, 'UTF-8');
By using htmlspecialchars, any tags are properly escaped and not interpreted as actual HTML or scripts.
Conclusion
CVE-2024-9906 shows how a simple oversight with input sanitization can lead to serious XSS vulnerabilities. In this case, anyone can remotely target administrators of a SourceCodester Online Eyewear Shop 1. installation. You should patch the software immediately or use the mitigation strategies above to protect users and site data.
Stay secure, and always sanitize your input!
*If you want more details or need help securing your installation, please check the official advisory links above or contact your software provider.*
Timeline
Published on: 10/13/2024 04:15:02 UTC
Last modified on: 10/16/2024 22:12:07 UTC