(A website is the most basic entry point for network access. With the rapid development of the Internet, the disadvantages of websites have gradually emerged, and various security loopholes have also emerged one after another. Hackers attack websites through these loopholes, often causing unimaginable consequences. This set of courses mainly introduces the common security vulnerabilities of websites and how to use them for students. You will have a simple understanding of the types, concepts and hazards of website security vulnerabilities. In-depth understanding of sql injection vulnerabilities, file upload vulnerabilities, image Trojan horse manifestations, etc., master the use of various vulnerabilities, and conduct actual combat demonstrations in the shooting range.)