VulnerabilityModified
CVE-2018-12397
This allows extensions to run content scripts in local pages without permission warnings when a local file is opened.
HIGH 7.1EPSS 0.37%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.1 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.37% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- mozilla/firefox · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · debian/debian linux · canonical/ubuntu linux
- Source
- security@mozilla.org
References
- http://www.securityfocus.com/bid/105718Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3005Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3006Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1487478Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-04Third Party Advisory
- https://usn.ubuntu.com/3801-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4324Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-27/Vendor Advisory
- http://www.securityfocus.com/bid/105718Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041944Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3005Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3006Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1487478Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-04Third Party Advisory
- https://usn.ubuntu.com/3801-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4324Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-27/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.