Provide references for CVE-2019-9870.
Where can I find more information about CVE-2019-9870?
References are available at: https://github.com/w8tcha/CKEditor-oEmbed-Plugin/issues/94, https://github.com/w8tcha/CKEditor-oEmbed-Plugin/commit/10f6169e39510bbf5af913886037044458b9dc9b.