By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
CVSS Details
- CVSS 3.1 Base Score: 5.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade firefox-esrUpgrade librewolf | Aug 22, 2024 | 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 firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefox | Oct 25, 2019 | Oct 23, 2019 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Oct 28, 2019 | Oct 28, 2019 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | Mar 16, 2020 | Jan 8, 2020 |
| Mfsa2019 33 | — | Upgrade to Mozilla Firefox ESR version 68.2 | Oct 23, 2019 | Oct 22, 2019 |
| Mfsa2019 34 | — | Upgrade to Mozilla Firefox version 70.0 | Oct 23, 2019 | Oct 22, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.2 | Oct 25, 2019 | Oct 22, 2019 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.2.0-11.4.15.0.1.4.0 on Solaris 11.4 | Nov 20, 2019 | Nov 20, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Oct 30, 2019 | Oct 22, 2019 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefoxNo solution existsUpgrade firefox-debugsourceUpgrade thunderbird | Oct 25, 2019 | Oct 23, 2019 |
| Suse | — | Upgrade libfreebl3Upgrade mozilla-nss-develUpgrade firefox-libharfbuzz0Upgrade libsoftokn3-32bitUpgrade mozillathunderbird-translations-commonUpgrade firefox-gtk3-immodule-thaiUpgrade MozillaFirefox-branding-openSUSEUpgrade firefox-gtk3-langUpgrade firefox-gtk3-immodule-vietnameseUpgrade firefox-glib2-langUpgrade mozillafirefox-translations-otherUpgrade firefox-gtk3-dataUpgrade mozilla-nspr-32bitUpgrade firefox-libgdk_pixbuf-2_0-0Upgrade firefox-libgtk-3-0Upgrade firefox-gtk3-immodule-ximUpgrade mozillafirefox-develUpgrade libfirefox-gthread-2_0-0Upgrade firefox-gtk3-immodules-tigrignaUpgrade mozillafirefox-translations-commonUpgrade libfirefox-gobject-2_0-0Upgrade libsoftokn3Upgrade mozillafirefox-branding-sledUpgrade firefox-gtk3-toolsUpgrade firefox-gdk-pixbuf-langUpgrade firefox-glib2-toolsUpgrade firefox-esr-branding-openSUSEUpgrade mozilla-nss-toolsUpgrade firefox-gtk3-branding-upstreamUpgrade mozillathunderbird-translations-otherUpgrade firefox-gio-branding-upstreamUpgrade mozillafirefox-buildsymbolsUpgrade mozillathunderbirdUpgrade mozillafirefox-branding-sleUpgrade firefox-gtk3-immodule-amharicUpgrade mozilla-nssUpgrade firefox-libffi7Upgrade mozillafirefox-branding-upstreamUpgrade firefox-gdk-pixbuf-thumbnailerUpgrade firefox-libcairo-gobject2Upgrade firefox-gtk3-immodule-inuktitutUpgrade firefox-atk-langUpgrade libfirefox-gio-2_0-0Upgrade mozilla-nspr-develUpgrade libfirefox-gmodule-2_0-0Upgrade firefox-libpango-1_0-0Upgrade mozilla-nss-32bitUpgrade mozillafirefoxUpgrade mozilla-nss-certs-32bitUpgrade libfreebl3-32bitUpgrade mozilla-nsprUpgrade firefox-libffi4Upgrade mozilla-nss-certsUpgrade libfirefox-glib-2_0-0Upgrade firefox-libcairo2Upgrade firefox-gdk-pixbuf-query-loadersUpgrade firefox-libatk-1_0-0Upgrade firefox-gtk3-immodule-multipress | Nov 1, 2019 | Oct 23, 2019 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Oct 24, 2019 | Oct 23, 2019 |
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