Cross-site Scripting Vulnerability in Commerce Extension for TYPO3
Summary
CVE-2009-4963: Commerce extension for TYPO3 vulnerable to Cross-site Scripting. Affects commerceteam/commerce versions >= 0.9.6, < 0.9.9. Fixed in 0.9.9. How to fix ↓
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Background
The Commerce extension for TYPO3 is a widely used package that facilitates e-commerce functionalities within TYPO3, a popular open-source content management system. This extension allows users to manage products, orders, and customer interactions effectively. However, prior to version 0.9.9, the extension was found to be vulnerable to cross-site scripting (XSS) attacks, which could compromise the security of web applications utilizing this package.
Vulnerability Detail
The vulnerability stems from insufficient input validation in the Commerce extension, allowing remote authenticated users to inject arbitrary web scripts or HTML into the application. This could lead to unauthorized actions being performed on behalf of users, data theft, or the spread of malware. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), indicating a failure to properly sanitize user inputs before rendering them in the web interface.
How To Fix
Minimum fixed version
0.9.9
This is the first release that contains the fix.
composer require commerceteam/commerce:0.9.9Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If updating the package is not immediately feasible, consider implementing input validation and output encoding in your application to mitigate the risk of XSS attacks. Ensure that user inputs are sanitized and that any dynamic content is properly escaped before rendering in the browser.
Conclusion
The Commerce extension for TYPO3 has a critical cross-site scripting vulnerability that can affect the security of applications using it. It is essential to update to version 0.9.9 or later to mitigate this risk. Additionally, employing input validation and output encoding can serve as temporary measures until the update is applied.
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FAQ
Cross-site scripting (XSS) is a security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to data theft or unauthorized actions.
You can check if your application is affected by this vulnerability using Vulert's playground at Vulert Scanner, which allows you to monitor and alert for open-source vulnerabilities without requiring any signup.
The consequences can include data theft, session hijacking, defacement of the website, and spreading malware to users visiting the compromised site.
Using older versions of the Commerce extension is not safe due to known vulnerabilities. It is crucial to update to the latest version to ensure the security of your application.
If immediate updates are not possible, implement input validation and output encoding as a temporary measure to reduce the risk of XSS attacks.
