XSS (Cross-Site Scripting) is a type of computer security vulnerability that allows malicious code to be injected into web applications. It is a form of attack that exploits the trust relationship between a web application and its users. XSS attacks can be used to steal user data, hijack user sessions, and even execute malicious code on the user’s computer. In the context of Drupal, XSS is a security vulnerability that can be exploited by malicious actors to inject malicious code into a Drupal website.
XSS attacks are typically carried out by injecting malicious code into a web application’s input fields. This code can then be executed by the web application, allowing the attacker to gain access to sensitive data or execute malicious code on the user’s computer. XSS attacks can also be used to redirect users to malicious websites or to display malicious content on the user’s screen.
In order to protect against XSS attacks, Drupal developers should ensure that all user input is properly sanitized and validated. This can be done by using the Drupal Form API to validate user input, or by using the Drupal Security Kit module to sanitize user input. Additionally, developers should ensure that all user-generated content is properly escaped before being displayed on the website.
XSS attacks are a serious security vulnerability and can have serious consequences for a Drupal website. It is important for Drupal developers to be aware of the risks associated with XSS attacks and to take steps to protect their websites from these attacks.