SQL injection

题解参考： https://www.cnblogs.com/yii-ling/p/17011963.html https://www.cnblogs.com/Zeker62/category/2017613.html https://developer.aliyun.com/article/1158593

Cross-site scripting

题解参考： https://www.cnblogs.com/zhoujinxuan/p/16268862.html https://blog.csdn.net/qq_33168924/article/details/135657809 https://www.ddosi.org/portswigger-xss-lab/

Cross-site request forgery (CSRF)

题解参考： https://www.cnblogs.com/yii-ling/p/17043759.html https://blog.csdn.net/m0_67978351/article/details/129054284

Cross-origin resource sharing (CORS)

题解参考： https://www.anquanke.com/post/id/246029 https://blog.csdn.net/bin789456/article/details/123403395 https://developer.aliyun.com/article/1159316