https://bbs.kafan.cn/thread-1686598-1-1.html http://www.anquan.us/static/drops/papers-894.html http://www.anquan.us/static/drops/papers-938.html http://www.vulnerability-lab.com/resources/documents/531.txt https://randywestergren.com/persistent-xss-verizons-webmail-client/ https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/XSS%20Injection