An access issue was addressed with improved access restrictions. This issue is fixed in macOS Big Sur 11.0.1. Processing a maliciously crafted document may lead to a cross site scripting attack.Referenceshttps://support.apple.com/en-us/HT211931https://support.apple.com/kb/HT212011http://seclists.org/fulldisclosure/2020/Dec/32http://seclists.org/fulldisclosure/2020/Dec/26
