Provide references for CVE-2020-25820.
Where can I find more information about CVE-2020-25820?
References are available at: https://www.redteam-pentesting.de/advisories/rt-sa-2020-005, https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html, http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.html, https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435, https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27.