A vulnerability where the security wrapper does not deny access to some exposed properties using the deprecated “exposedProps” mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. This vulnerability affects Firefox < 57.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "57",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]