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How are XSS vulnerabilities prevented in Magento 2?
XSS vulnerabilities can be prevented by validating and sanitizing user input as well as sanitizing dynamic values when rendering the view (HTML, mobile). Any request data can be manipulated by attackers and can contain malicious values such as: To combat this, developers must validate any value coming in from requests.
Why are SQL injection attacks common in Magento?
Magento was aimed towards easing the process of managing and creating a store. Being open-source, it uses MySql or MariaDB for data storage and management. Database plays a vital role in managing the Magento store. This also means targeting the Magento database with Magento SQL injection attacks is quite common.
What is a cross site scripting ( XSS ) vulnerability?
Cross-site scripting, or XSS, is a security vulnerability that can be found in web applications. This vulnerability allows attackers to inject malicious code/styles into a web page viewed by users. Magento extension developers should be aware of these vulnerabilities to avoid introducing them in their code.
How to protect your extension from XSS attacks?
Output processing involves sanitizing strings that may have come from external data sources before using it to render views. It is the main method of protecting your extension from XSS attacks. The general rule is: Do not trust dynamic values.
Where can I find the Escaper variable in Magento?
The \\Magento\\Framework\\Escaper class is provided for .phtml templates and PHP classes responsible for generating HTML. It contains HTML sanitization methods for a variety of contexts. The $escaper local variable is available inside the .phtml templates. See the product listing template as example of $escaper usage in .phtml templates.
What do you need to know about Magento Binding syntax?
See Magento binding syntax to learn more about UI component templates. In order to notify developers that these properties/function results may contain HTML, Magento requires (with the help of a static test) that you name such properties/functions using “UnsanitizedHtml” suffix.
How to avoid escapehtmlattr in Magento knockout template?
Case: All JavaScript inside attributes must be escaped by escapeJs before escapeHtmlAttr: In knockout templates, you can bind a UI component’s property/function as the ‘inner HTML’ of an element. Such properties may contain dynamic data and must be sanitized within componenets. See Magento binding syntax to learn more about UI component templates.
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