Sanitize 'asdf' GET parameter in register.php to prevent reflected XSS #91
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Unvalidated input can lead to arbitrary code execution. The
register.phpscript directly reflects theasdfGET parameter in the HTTP response on lines 20-21. This lack of output encoding allows an attacker to inject malicious HTML or JavaScript via a crafted URL, which can then be executed in the victim's browser, potentially leading to cookie theft or other malicious actions.