Dating site script asp.net
Although widely recommended, performing HTML entity encoding only on the five XML significant characters is not always sufficient to prevent many forms of XSS attacks.
As encoding is often difficult, security encoding libraries are usually easier to use.) will not suffice since the user input needs to be rendered as HTML by the browser (so it shows as "very large", instead of "very large").
Exploiting one of these, attackers fold malicious content into the content being delivered from the compromised site.
When the resulting combined content arrives at the client-side web browser, it has all been delivered from the trusted source, and thus operates under the permissions granted to that system.
Some sources further divide these two groups into traditional (caused by server-side code flaws) and DOM-based (in client-side code).
The bait is an innocent-looking URL, pointing to a trusted site but containing the XSS vector.
If the trusted site is vulnerable to the vector, clicking the link can cause the victim's browser to execute the injected script.
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.
XSS effects vary in 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.
Security on the web depends on a variety of mechanisms, including an underlying concept of trust known as the same-origin policy.