vulnerability
MFSA2021-47 Thunderbird: Security Vulnerabilities fixed in Thunderbird 91.2 (CVE-2021-38497)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Oct 6, 2021 | Oct 14, 2021 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Oct 6, 2021
Added
Oct 14, 2021
Modified
Mar 27, 2026
Description
Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Solution
mozilla-thunderbird-upgrade-91_2
Rapid7 Labs
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