Introduction to Reflected XSS into attribute with angle brackets HTML-encoded.
In Reflected XSS into attribute with angle brackets HTML-encoded, Angle brackets were used to reflect XSS into an attribute. When user input is inserted within an HTML attribute value, it is not properly sanitized, resulting in a security risk. Angle brackets (and) are converted to HTML entity equivalents (and) in this case to prevent them from being interpreted as HTML tags. If the input is not validated correctly, an attacker can inject specially crafted input containing encoded angle brackets, resulting in the execution of malicious code in the victim’s browser. To avoid this issue, it is critical to thoroughly sanitize and validate user input before inserting it within HTML attributes, taking special characters and HTML metacharacters into account to prevent XSS attacks.
Lab Solutions | Practical Work Time Reflected XSS into attribute
This lab contains a reflected cross-site scripting vulnerability in the search blog functionality where angle brackets are HTML-encoded. To solve this lab, perform a cross-site scripting attack that injects an attribute and calls the alert function.
Stepwise Solution of the lab:-
After accessing the lab, you can see a search functionality (search box). Just for the test let’s type anything to check its functionality.
Well, let’s execute a simple "(“) to see how this web application reacts.
As you can see it’s simply taking it encoded. In this scenario, you can easily solve this lab via this payload for Reflected cross-site scripting (XSS).
"onmouseover="alert(1)
Finally, the lab has been successfully solved.
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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.
