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CVE-2018-12396 Details

Description

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2018:3005	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3006	CVE	Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1483602	CVE	Broken LinkIssue TrackingVendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html	CVE	Third Party Advisory
https://security.gentoo.org/glsa/201811-04	CVE	Third Party Advisory
https://usn.ubuntu.com/3801-1/	CVE	Third Party Advisory
https://www.debian.org/security/2018/dsa-4324	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/	CVE	Vendor Advisory
http://www.securityfocus.com/bid/105718	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041944	CVE	Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:3005	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3006	[email protected]	Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1483602	[email protected]	Broken LinkIssue TrackingVendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html	[email protected]	Third Party Advisory
https://security.gentoo.org/glsa/201811-04	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3801-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2018/dsa-4324	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-26/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-27/	[email protected]	Vendor Advisory
http://www.securityfocus.com/bid/105718	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041944	[email protected]	Third Party AdvisoryVDB Entry

see all 22 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-732	Incorrect Permission Assignment for Critical Resource	[email protected]

Affected Products

Product	Versions
mozilla firefox	< 63.0
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.
mozilla firefox esr	< 60.3
CPE cpe:2.3:a:mozilla:firefox_esr:::::::: Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.
canonical ubuntu linux	14.04 16.04 18.04 18.10
CPE cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::* Remediation No remediation found in references.
redhat enterprise linux desktop	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server aus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server eus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server tus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 3, 2019	CWE Remap	[email protected]
Mar 1, 2019	Initial Analysis	[email protected]
Mar 1, 2019	CVE Modified	[email protected]

CVE-2018-12396 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

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