![]() ![]() Ĭross-site scripting attacks use known vulnerabilities in web-based applications, their servers, or the plug-in systems on which they rely. Content from URLs where any of these three attributes are different will have to be granted permissions separately. ftp, http, or https), (2) host name, and (3) port number will share these permissions. This states that if content from one site (such as ) is granted permission to access resources (like cookies etc.) on a web browser, then content from any URL with the same (1) URI scheme (e.g. Security on the web depends on a variety of mechanisms, including an underlying concept of trust known as the same-origin policy. Main articles: Web security and Same-origin policy It initially was an attack that was used for breaching data across sites, but gradually started to include other forms of data injection attacks. OWASP considers the term cross-site scripting to be a misnomer. Range from petty nuisance to significant security risk, depending on the sensitivity of the data handled by the vulnerable site and the nature of any security mitigation implemented by the site's owner network. During the second half of 2007, XSSed documented 11,253 site-specific cross-site vulnerabilities, compared to 2,134 "traditional" vulnerabilities documented by Symantec. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin policy. XSS attacks enable attackers to inject client-side scripts into web pages viewed by other users. For other uses, see XSS (disambiguation).Ĭross-site scripting ( XSS) is a type of security vulnerability that can be found in some web applications. ![]()
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