A WebExtension can request access to local files without the warning prompt stating that the extension will “Access your data for all websites” being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.
[
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "60.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "63",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]
www.securityfocus.com/bid/105718
www.securitytracker.com/id/1041944
access.redhat.com/errata/RHSA-2018:3005
access.redhat.com/errata/RHSA-2018:3006
bugzilla.mozilla.org/show_bug.cgi?id=1487478
lists.debian.org/debian-lts-announce/2018/11/msg00008.html
security.gentoo.org/glsa/201811-04
usn.ubuntu.com/3801-1/
www.debian.org/security/2018/dsa-4324
www.mozilla.org/security/advisories/mfsa2018-26/
www.mozilla.org/security/advisories/mfsa2018-27/