When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
CVSS Details
- CVSS 3.1 Base Score: 6.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esrUpgrade firefoxUpgrade librewolf | Jun 11, 2020 | Jan 8, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Apr 27, 2020 | Jan 8, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 8, 2020 |
| Centos_linux | — | Upgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-debuginfo | Jan 14, 2020 | Jan 8, 2020 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jan 13, 2020 | Jan 8, 2020 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Mar 13, 2020 | Jan 8, 2020 |
| Mfsa2020 01 | — | Upgrade to Mozilla Firefox version 72.0 | Jan 8, 2020 | Jan 7, 2020 |
| Mfsa2020 02 | — | Upgrade to Mozilla Firefox ESR version 68.4 | Jan 8, 2020 | Jan 7, 2020 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.4.1 | Jan 13, 2020 | Jan 8, 2020 |
| Oracle Solaris | — | Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.4.1-11.4.18.0.1.3.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 68.4.1-11.4.18.0.1.3.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.4.1-11.4.18.0.1.3.0 on Solaris 11.4Upgrade mail/thunderbird to version 68.4.1-11.4.18.0.1.3.0 on Solaris 11.4 | Jan 19, 2021 | Jan 8, 2020 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Jan 19, 2020 | Jan 7, 2020 |
| Redhat_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsource | Jan 14, 2020 | Jan 8, 2020 |
| Suse | — | Upgrade mozillafirefox-develUpgrade mozillafirefox-translations-otherUpgrade mozillathunderbird-translations-commonUpgrade mozillafirefox-translations-commonUpgrade mozillathunderbirdUpgrade mozillafirefoxUpgrade mozillafirefox-branding-upstreamUpgrade mozillathunderbird-translations-otherUpgrade mozillafirefox-buildsymbols | Jan 11, 2020 | Jan 8, 2020 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Jan 10, 2020 | Jan 8, 2020 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub