CVE-2023-6206

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.49%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1857430 issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-49/ release notes vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-50/ release notes vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-52/ release notes vendor advisory
https://www.debian.org/security/2023/dsa-5561 third party advisory
https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html mailing list
https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html

Frequently Asked Questions

What is the severity of CVE-2023-6206?
CVE-2023-6206 has been scored as a medium severity vulnerability.
How to fix CVE-2023-6206?
To fix CVE-2023-6206, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-6206 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-6206 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6206?
CVE-2023-6206 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
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