The specializedRendering function in Rocket.Chat server before 3.9.2 allows a cross-site scripting (XSS) vulnerability by way of the value parameter.
specializedRendering
value
{ "versions": [ { "introduced": "0" }, { "fixed": "3.9.2" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8288.json"