13.18 Lab: DOM XSS in jQuery selector sink using a hashchange event | 2024

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This lab contains a DOM-based cross-site scripting vulnerability on the home page. It uses jQuery’s $() selector function to auto-scroll to a given post, whose title is passed via the location.hash property. To solve the lab, deliver an exploit to the victim that calls the print() function in their browser | Karthikeyan Nagaraj

This lab contains a DOM-based cross-site scripting vulnerability on the home page. It uses jQuery’s $() selector function to auto-scroll to a given post, whose title is passed via the location.hash property. To solve the lab, deliver an exploit to the victim that calls the print() function in their browser.

Notice the vulnerable code on the home page using Burp or the browser’s DevTools.From the lab banner, open the exploit server.In the Body section, add the following malicious iframe:
<iframe src="https://YOUR-LAB-ID.web-security-academy.net/#" onload="this.src+='<img src=x onerror=print()>'"></iframe>Store the exploit, then click View Exploit to confirm that the print() function is called.Go back to the exploit server and click Deliver to victim to solve the lab.

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Author: Karthikeyan Nagaraj ~ Cyberw1ng

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