Facebook Xss Attack

Cross site scripting also known as xss is a type of computer security vulnerability typically found in web applicationsxss enables attackers to inject client side scripts into web pages viewed by other users. This header enables the cross site scripting xss filter built into most recent web browsers.

To understand the cross site scripting vulnerability you have to first understand the basic concept of the same origin policy sop which forbids websites to retrieve content from pages with another origin.

Facebook xss attack. Information such as purchases made and games played were published in the users news feed. Singapore airlines customer logs into account sees strangers personal data. Facebook and kaspersky lab are in partnership to combat unsolicited activity on social network with help of kaspersky malware scan for facebook.

In november facebook launched beacon a system discontinued in september 2009 where third party websites could include a script by facebook on their sites and use it to send information about the actions of facebook users on their site to facebook prompting serious privacy concerns. The cross site scripting xss vulnerability. Remember youre not protecting just against valid html.

A cross site scripting vulnerability may be used by attackers to bypass access controls such as the same origin policycross site scripting carried out on websites accounted for. Dont do this with regular expressions. Cross site scripting xss refers to client side code injection attack wherein an attacker can execute malicious scripts also commonly referred to as a malicious payload into a legitimate website or web application.

Frequent flyer member successfully logs into her krisflyer account using her user id and password but sees personal. Xss vulnerabilities allow an attacker to execute arbitrary commands and display arbitrary content in a victim users browser. We would like to show you a description here but the site wont allow us.

An xss vulnerability arises when web applications take data from users and dynamically include it in web pages without first properly validating the data. Youre protecting against the dom that web browsers create. You can see in this list of useful http headers.

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