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 | alma-upgrade-firefoxalma-upgrade-thunderbird | May 4, 2022 | Dec 8, 2021 | |
| Alpine Linux | alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf | Aug 22, 2024 | Dec 8, 2021 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-thunderbirdamazon-linux-ami-2-upgrade-thunderbird-debuginfo | Sep 30, 2022 | Dec 8, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Dec 8, 2021 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-firefox-debugsourcecentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfocentos-upgrade-thunderbird-debugsource | Nov 9, 2021 | Nov 3, 2021 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-thunderbird | Dec 30, 2021 | Dec 8, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-mail-client-thunderbirdgentoo-linux-upgrade-mail-client-thunderbird-bingentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Feb 22, 2022 | Dec 8, 2021 | |
| Mfsa2021 48 | mozilla-firefox-upgrade-94_0 | Nov 3, 2021 | Nov 2, 2021 | |
| Mfsa2021 49 | mozilla-firefox-esr-upgrade-91_3 | Nov 3, 2021 | Nov 2, 2021 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-91_3 | Nov 4, 2021 | Nov 3, 2021 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-mail-thunderbird-91-3-0-11-4-40-0-1-107-1oracle-solaris-11-4-upgrade-web-browser-firefox-91-3-0-11-4-40-0-1-107-1oracle-solaris-11-4-upgrade-web-data-firefox-bookmarks-91-3-0-11-4-40-0-1-107-1 | Dec 13, 2021 | Dec 8, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Nov 4, 2021 | Nov 2, 2021 |
| Redhat_linux | redhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-firefox-debugsourceredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource | Nov 9, 2021 | Nov 3, 2021 | |
| Rocky_linux | rocky-upgrade-firefoxrocky-upgrade-firefox-debuginforocky-upgrade-firefox-debugsourcerocky-upgrade-thunderbirdrocky-upgrade-thunderbird-debuginforocky-upgrade-thunderbird-debugsource | May 5, 2022 | Dec 8, 2021 | |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Nov 11, 2021 | Nov 3, 2021 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Nov 4, 2021 | Nov 3, 2021 |
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