The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVSS Details
- CVSS 3.1 Base Score: 10
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox | May 4, 2022 | Dec 8, 2021 |
| Alpine Linux | — | Upgrade librewolfUpgrade thunderbirdUpgrade firefox-esrUpgrade firefox | Aug 22, 2024 | Dec 8, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Sep 30, 2022 | Dec 8, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 8, 2021 |
| Centos_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Nov 9, 2021 | Nov 3, 2021 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Dec 30, 2021 | Dec 8, 2021 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin. | Feb 22, 2022 | Dec 8, 2021 |
| Mfsa2021 48 | — | Upgrade to Mozilla Firefox version 94.0 | Nov 3, 2021 | Nov 2, 2021 |
| Mfsa2021 49 | — | Upgrade to Mozilla Firefox ESR version 91.3 | Nov 3, 2021 | Nov 2, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 91.3 | Nov 4, 2021 | Nov 3, 2021 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 91.3.0-11.4.40.0.1.107.1 on Solaris 11.4Upgrade mail/thunderbird to version 91.3.0-11.4.40.0.1.107.1 on Solaris 11.4Upgrade web/browser/firefox to version 91.3.0-11.4.40.0.1.107.1 on Solaris 11.4 | Dec 13, 2021 | Dec 8, 2021 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Nov 4, 2021 | Nov 2, 2021 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefoxNo solution existsUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird | Nov 9, 2021 | Nov 3, 2021 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debugsource | May 5, 2022 | Dec 8, 2021 |
| Suse | — | Upgrade mozillafirefox-translations-commonUpgrade mozillathunderbirdUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefoxUpgrade mozillafirefox-translations-otherUpgrade mozillathunderbird-translations-otherUpgrade mozillafirefox-develUpgrade mozillathunderbird-translations-common | Nov 11, 2021 | Nov 3, 2021 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Nov 4, 2021 | Nov 3, 2021 |
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