CVE:CVE-2020-5775
CNNVD:CNNVD-202008-1080
Canvas LMS 2020-07-29 存在安全漏洞，未经身份验证的攻击者导致Canvas应用程序对任意域执行HTTP GET请求。
solution:Upgrade instructure canvas_learning_management_service to a higher version than 2020-07-29,and avoid the version 2020-07-29