vulnerability
MFSA2021-49 Firefox: Security Vulnerabilities fixed in Firefox ESR 91.3 (CVE-2021-38508)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Nov 2, 2021 | Nov 3, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Nov 2, 2021
Added
Nov 3, 2021
Modified
Aug 11, 2025
Description
By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Solution
mozilla-firefox-esr-upgrade-91_3
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