A compromised content process could have performed session history manipulations it should not have been able to due to testing infrastructure that was not restricted to testing-only configurations. This vulnerability affects Firefox < 88.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "88",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]