vulnerability
MFSA2021-23 Firefox: Security Vulnerabilities fixed in Firefox 89 (CVE-2021-29961)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Jun 1, 2021 | Jun 2, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jun 1, 2021
Added
Jun 2, 2021
Modified
Aug 11, 2025
Description
When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.
Solution
mozilla-firefox-upgrade-89_0
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