Introduction to Reflected DOM XSS
Reflected DOM-based Cross-Site Scripting (XSS) is a web security vulnerability where untrusted data is reflected into the DOM, allowing attackers to execute malicious scripts within a user’s browser. To mitigate XSS, web developers must ensure proper validation, sanitization of user input, and regular security assessments. Prioritizing web security and implementing robust measures can significantly reduce the risk of XSS vulnerabilities and safeguard users’ sensitive information.
Lab Solutions | Practical Work Time Reflected DOM XSS
This lab demonstrates a reflected DOM vulnerability. Reflected DOM vulnerabilities occur when the server-side application processes data from a request and echoes the data in the response. A script on the page then processes the reflected data in an unsafe way, ultimately writing it to a dangerous sink.
To solve this lab, create an injection that calls the alert() function.
Stepwise Solution of the lab:-
After accessing this lab you can see here we first noticed it has “Search” functionality.
To check its functionality let’s search random things. [NOTE: We will be using Burp Suite in this lab. So turn On intercept while searching Random words even end of the solving this lab]
So, here we are searching this to see it’s functionality and note that we are using Burp Suite on the other hand.
While searching as we mentioned the intercept is on. So, we’ve to forward the request.
In the site map there is a JSON response that uses an eval()function.
So we are good to go with the below payload, to see what will happen.
\"-alert(1)}//
We successfully solved the lab.
I hope you had loved reading this article after you had completed this article we highly recommend you to study the next article: Stored DOM XSS, please don’t forget to leave a comment over here and share it with your friends as well, Good Luck!
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FAQS
Website security refers to protecting a website or web application from cyberattacks, unauthorized access, or other security threats.
Web application security means protecting a website from cyberattacks. These attacks may include vulnerabilities such as SQL injection, XSS, file inclusion, and others.
It is always a good practice to use an up-to-date browser with timely updates. Keep your browser plugins up-to-date, avoid malicious websites and links, and always enable 2-factor authentication while avoiding clickjacking.
Searching for someone’s social security number or credit card information on the dark web is illegal and unethical. It is important to always avoid such activities and protect yourself and others from cyber threats.
