Medium severity · published Nov 21, 2023
CVE-2023-6206
The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts
5.4
CVSS
0.6%
EPSS
No
On KEV
Description
The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 120.0 · source: NVD
DL
Debian Linux · Debian
10.0; 11.0; 12.0 · source: NVD
FE
Firefox Esr · Mozilla
before 115.5.0 · source: NVD
TH
Thunderbird · Mozilla
before 115.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6206
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6206
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1857430
Mailing List
https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
Third Party Advisory
https://www.debian.org/security/2023/dsa-5561
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-49/
Release Notes
https://www.mozilla.org/security/advisories/mfsa2023-50/
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