Learning PHP 7 (Video 20)

The video tutorial covers essential security concepts for web applications, focusing on user interaction. It explains common vulnerabilities like Cross-Site Scripting (XSS), SQL Injection, and Cross-Site Request Forgery (CSRF), providing examples and prevention techniques. The importance of using prepared statements, input validation, and security frameworks like PDO and Doctrine is emphasized to mitigate these risks.

What are some common weaknesses in web application security mentioned in the text?

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Explain how cross-site scripting (XSS) can be exploited in a web application.

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What is SQL injection and how can it affect a web application's security?

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Describe the concept of cross-site request forgery (CSRF) and provide an example.

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What measures can be taken to prevent XSS and SQL injection attacks?

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