References https://update.nsfocusglobal.com/update/listNewipsDetail/v/rule5.6.10 https://update.nsfocusglobal.com/update/listNewipsDetail/v/rule5.6.11_v2 https://avd.aliyun.com/detail?id=AVD-2021-898722 https://www.secevery.com/toBugInfo?id=1858788534473506817 http://wy.zone.ci/bug_detail.php?wybug_id=wooyun-2015-0132747 http://wooyun.2xss.cc/bug_detail.php?wybug_id=wooyun-2011-03502 https://cn-sec.com/archives/4276873.html