2/20/2023 0 Comments What is an insecure browserA third type, which is less common, is referred to as DOM-based XSS.Īny XSS attack occurs when data enters via an untrusted source and is sent to a user (in dynamic content) without being checked for malicious content. We can group most XSS attacks into two categories: stored and reflected. XSS can cause scripts to be executed in the user's browser, resulting in hijacked sessions, website defacement, and redirection of users to malicious sites.Įssentially an attacker is inputting malicious code into a section for user input which the server expects to be data (but is instead code designed to be executed).Īnd if you don't handle it appropriately, the malicious code can break out of the 'data plane' and execute as normal code (the 'control plane'). XSS attacks occur when data enters a web application through an untrusted source (like a web request), and is sent to a user without being validated. While automated tools can find some of these problems, there are also automated tools designed to detect and exploit these vulnerabilities. Cross Site Scripting is the second most prevalent issue in the Open Source Foundation for Application Security (OWASP) top 10 – it's found in roughly 2/3 of all applications.
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