Provide references for CVE-2020-7961.
Where can I find more information about CVE-2020-7961?
References are available at: https://portal.liferay.dev/learn/security/known-vulnerabilities, https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/117954271, http://packetstormsecurity.com/files/157254/Liferay-Portal-Java-Unmarshalling-Remote-Code-Execution.html, http://packetstormsecurity.com/files/158392/Liferay-Portal-Remote-Code-Execution.html, https://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/.