best technique for preventing cross site scripting vulnerabilities

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How to use PHP to prevent XSS cross-site scripting attacks

First, cross-site scripting attacks are caused by the lack of strict filtering of user input, so we must intercept the possible risks before all the data comes into our web site and database. The Htmlentities () function can be used for illegal HTML code including single double quotes. ; to nerf the tag $val = Preg_re

ASP methods to prevent Cross-site scripting attacks-application tips

Ways to prevent Cross-site scripting attacks 1. Use space to replace special characters% 2. Use @, specifically the following statement exec= "INSERT into User (Username,psw,sex,department,phone,email,demo) VALUES (' username" ', ' "PSW ', ' sex ', ' ' department ', ' ' phone ' ', ' ' email ', ' ' @demo ' )" Conn.execute exec Replace with: exec= INSERT INTO Us

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