Description
Different techniques existed to obscure the fullscreen notification in Firefox and Focus for Android. These could have led to potential user confusion and spoofing attacks. *This bug only affects Firefox and Focus for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 112 and Focus for Android < 112.
References (8)
Core 8
Core References
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1816007
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1816059
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821155
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821576
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1821906
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822298
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1822305
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-13/
Scores
CVSS v3
9.1
EPSS
0.0053
EPSS Percentile
67.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
Status
published
Products (2)
mozilla/firefox
< 112.0
mozilla/firefox_focus
< 112.0
Published
Jun 19, 2023
Tracked Since
Feb 18, 2026