When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing the prompt. This vulnerability affects Firefox < 78.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "78",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]