Uncategorized Xss Attack Example Php - Xss attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Reflected xss attacks are much less dangerous than stored xss vulnerabilities (see below) for a stored xss attack occurs when an attacker sends malicious data to a website that is stored in a store the file with a.php extension e.g.