XSS Attack - Why strip_tags is not enough

In PHP, it is common to use the strip_tags() function as a way to prevent XSS intrusion. However, this function does not even work to mitigate this type of attack, giving a false sense of security. But why?

What is XSS?

XSS (Cross-Site Scripting) is a form of attack that occurs when an attacker exploits a vulnerability in a web application to insert malicious scripts into its pages. These scripts are executed in the browsers of the application's users and …

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