Cross-site scripting

Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications.

Description

XSS enables attackers to inject client-side script into web pages viewed by other users.

Same-origin policy

A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same-origin policy.

Effects

The effect of XSS may range from a petty nuisance to a 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.

See also

• Ajax (programming)
• Client-side scripting
• Computer security
• HTTP cookie
• Same-origin policy
• Web security

External Links

• Cross-site scripting @ Wikipedia