Provide references for CVE-2019-13972.
Where can I find more information about CVE-2019-13972?
References are available at: http://blog.topsec.com.cn/%E5%A4%A9%E8%9E%8D%E4%BF%A1%E5%85%B3%E4%BA%8Elayerbb-1-1-3-xss%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90/.