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The persistent (or stored) XSS vulnerability is a more devastating variant of a cross-site scripting flaw: it occurs when the data provided by the attacker is saved by the server, and then permanently displayed on "normal" pages returned to other users in the course of regular browsing, without proper HTML escaping. A classic example of this is ...
Cross site leak attacks require that the attacker identify at least one state-dependent URL in the victim app for use in the attack app. Depending on the victim app's state, this URL must provide at least two responses. A URL can be crafted, for example, by linking to content that is only accessible to the user if they are logged into the ...
A common form of this attack occurs when a web application uses a cookie to authenticate all requests transmitted by a browser. Using JavaScript, an attacker can force a browser into transmitting authenticated HTTP requests. The Samy computer worm used cross-site scripting (XSS) to turn the browser's authenticated MySpace session into a ...
Self-XSS (self cross-site scripting) is a type of security vulnerability used to gain control of victims' web accounts. In a Self-XSS attack, the victim of the attack runs malicious code in their own web browser, thus exposing personal information to the attacker.
Double URI-encoding, also referred to as double percent-encoding, is a special type of double encoding in which data is URI-encoded twice in a row. [6] In other words, double-URI-encoded form of data X is URI-encode(URI-encode(X)). [7]
In 2005, Kamkar released the Samy worm, the first publicly released self-propagating cross-site scripting worm, onto MySpace. [10] The worm carried a payload that would display the string "but most of all, Samy is my hero" on a victim's profile and cause the victim to unknowingly send a friend request to Kamkar.
Shark attacks can be a rare occurrence, but the BBC’s latest documentary ‘Why Sharks Attack’ has no doubt caught the eyes of many, sparking questions and fears of shark attacks while ...
In order for a CSRF attack to work, an attacker must identify a reproducible web request that executes a specific action such as changing an account password on the target page. Once such a request is identified, a link can be created that generates this malicious request and that link can be embedded on a page within the attacker's control.