Provide references for CVE-2019-16976.
Where can I find more information about CVE-2019-16976?
References are available at: https://github.com/fusionpbx/fusionpbx/commit/d6ea02d896b2c57dec491ee3b36ec102639270be, https://resp3ctblog.wordpress.com/2019/10/19/fusionpbx-xss-9/.