X-Frame-Options
Understand clickjacking and how attackers exploit hidden iframes to hijack clicks on your website. Explore the use of the X-Frame-Options HTTP header to restrict iframe embedding and protect your web application from unauthorized framing attacks. Learn about its policies like DENY, SAMEORIGIN, and ALLOW-FROM to enhance your site's security.
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What is clickjacking?
Imagine seeing a web page like this on your screen:
As soon as you click on the link, you realize that all the money in your bank account is gone. What happened?
You were a victim of a clickjacking attack! An attacker directed you to their website, which displays an attractive link to click. Unfortunately, they also embedded an iframe from your-bank.com/transfer?amount=10000000&to=attacker@example.com in the page but hid it by setting its opacity to 0%. Then, instead of clicking on the original page and winning a brand-new hummer, the browser captured a click on the iframe, a dangerous click that confirmed the transfer of money. Most banking systems require ...