vulnerability
MFSA2023-56 Firefox: Security Vulnerabilities fixed in Firefox 121 (CVE-2023-6867)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Dec 19, 2023 | Dec 20, 2023 | Aug 11, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Dec 19, 2023
Added
Dec 20, 2023
Modified
Aug 11, 2025
Description
The timing of a button click causing a popup to disappear was approximately the same length as 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 ESR < 115.6 and Firefox < 121.
Solution
mozilla-firefox-upgrade-121_0
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