Sanitize asdf GET parameter in profile.php to prevent reflected XSS #93
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This reflected XSS vulnerability allows an attacker to execute arbitrary JavaScript in a user's browser, potentially leading to session theft or other malicious actions. The
profile.phpscript directly echoes the value of theasdfGET parameter on lines 14-15 without any sanitization, which causes any provided JavaScript code to be executed. An attacker can craft a malicious URL (e.g.,/profile.php?asdf=<script>evil()</script>) to trigger this vulnerability.