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Published: 2 June 2023

Per origin notification permissions were being stored in a way that didn't take into account what browsing context the permission was granted in. This lead to the possibility of notifications to be displayed during different browsing sessions.<br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 109.


mozjs contains a copy of the SpiderMonkey JavaScript engine
starting with Ubuntu 22.04, the firefox package is just a script
that installs the Firefox snap
android specific issue



Cvss 3 Severity Score


Score breakdown


Package Release Status
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support, was needs-triage)
focal Not vulnerable

jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
trusty Ignored
(end of standard support)
upstream Not vulnerable
(debian: Only affects Firefox on Android)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N