NetSight
medium6.5

CVE-2018-12396

A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events.

Impact

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.

Affected products

VendorProductAffected versions
MozillaFirefox
before 63.0
MozillaFirefox Esr
before 60.3
DebianDebian Linux
Versions 8.0, 9.0
CanonicalUbuntu Linux
Versions 14.04, 16.04, 18.04, 18.10
RedhatEnterprise Linux Desktop
Versions 6.0, 7.0
RedhatEnterprise Linux Server
Versions 6.0, 7.0
RedhatEnterprise Linux Server Aus
Version 7.6
RedhatEnterprise Linux Server Eus
Version 7.6
RedhatEnterprise Linux Server Tus
Version 7.6
RedhatEnterprise Linux Workstation
Versions 6.0, 7.0

Weakness classification

References