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CVE-2018-12396

Date: February 28, 2019

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.

Language: Unix

Severity Score

Related Resources (15)

https://nvd.nist.gov/vuln/detail/CVE-2018-12396
https://security.gentoo.org/glsa/201811-04
https://www.mozilla.org/security/advisories/mfsa2018-27/
https://access.redhat.com/security/cve/CVE-2018-12396
https://www.mozilla.org/security/advisories/mfsa2018-26/
https://usn.ubuntu.com/3801-1/
https://bugzilla.mozilla.org/show_bug.cgi?id=1483602
https://www.debian.org/security/2018/dsa-4324
https://security-tracker.debian.org/tracker/CVE-2018-12396
https://access.redhat.com/errata/RHSA-2018:3006
https://access.redhat.com/errata/RHSA-2018:3005
https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html
http://www.securityfocus.com/bid/105718
http://www.securitytracker.com/id/1041944
https://www.mend.io/vulnerability-database/CVE-2018-12396

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Incorrect Permission Assignment for Critical Resource

CWE-732

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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