An object tag with a data URI did not correctly inherit the document’s Content Security Policy. This allowed a CSP bypass in a cross-origin frame if the document’s policy explicitly allowed data: URIs. This vulnerability affects Firefox < 70.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"status": "affected",
"version": "before 70"
}
]
}
]