This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. A website may be able to access the microphone without the microphone use indicator being shown.
https://support.apple.com/kb/HT213985
https://support.apple.com/kb/HT213984
https://support.apple.com/kb/HT213983
https://support.apple.com/en-us/HT213985
https://support.apple.com/en-us/HT213984
https://support.apple.com/en-us/HT213983
http://seclists.org/fulldisclosure/2023/Oct/26