vulnerability
Red Hat: CVE-2021-43528: CVE-2021-43528 Mozilla: JavaScript unexpectedly enabled for the composition area (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Dec 8, 2021 | Dec 10, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Dec 8, 2021
Added
Dec 10, 2021
Modified
Aug 11, 2025
Description
Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource
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