GitHub - ymakux/xss: PHP filter class to prevent cross-site-scripting (XSS) vulnerabilities. Removes dangerous tags and protocols from HTML. The main difference between this class and strip_tags() or filter_var() is that you can
Cross Site Scripting Prevention】Protect and Prevent XSS
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reflected xss - How to bypass server side XSS filter for characters like < > / * - Information Security Stack Exchange
XSS: Beating HTML Sanitization Filters: Event Handlers - PortSwigger