Scenario 1: Other site loads your site in iFrame Let’s continue to break down iFrame security cases for each scenario. I assume that you now know the techniques to prevent iFrame from security risks. Checkout to this CSP: sandbox docs for better understanding. CSP sandbox: another option similar to iFrame sandbox attribute, but this will be applied to all iFrames in a site.Checkout to this Iframe sandbox attribute docs for better understanding. It applies restrictions to a page's actions including preventing popups, preventing the execution of plugins and scripts, and enforcing a same-origin policy. IFrame sandbox attribute: Applies extra restrictions to the content in the frame.Checkout to this CSP: frame-src docs for better understanding. CSP frame-src: specifies valid sources for nested browsing contexts loading using elements such as and.Checkout to this CSP: frame-ancestors docs for better understanding. CSP frame-ancestors: specifies valid parents that may embed a page using, ,, , or.Checkout to this X-Frame-Options docs for better understanding. X-Frame-Options: HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a, , or.In this article, I will describe scenarios of using iFrame, the threats, and the solutions to minimize the chance for attackers.īefore going through the detailed scenarios, let’s refresh to these techniques that will be used to prevent iFrame from security threats: But this article will explain it more comprehensively and in simple words to make it easier for you to understand iFrame security. If you search on the internet, there are many posts and information similar to this article. However, its use has several security risks that can open the doors for attackers. IFrames have been around for a long time in web development, and are still widely used today.
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