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The navigator.sendBeacon implementation in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 omits the CORS Origin header, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade xulrunnerUpgrade xulrunner-devel | Dec 1, 2016 | Jan 14, 2015 |
| Freebsd | — | Upgrade linux-seamonkeyUpgrade linux-firefoxUpgrade libxulUpgrade thunderbirdUpgrade seamonkeyUpgrade firefoxUpgrade linux-thunderbirdUpgrade firefox-esr | Dec 10, 2025 | Jan 14, 2015 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade dev-libs/nspr.Upgrade www-client/seamonkey.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/seamonkey-bin. | Oct 30, 2017 | Jan 14, 2015 |
| Mfsa2015 03 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 31.4Upgrade to Mozilla Firefox version 35.0 | Jan 15, 2015 | Jan 13, 2015 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.32Upgrade to the latest version of Mozilla SeaMonkey | Jan 15, 2015 | Jan 13, 2015 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 31.4 | Jan 15, 2015 | Jan 13, 2015 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 31.6.0-0.175.2.11.0.3.0 on Solaris 11.2Upgrade web/data/firefox-bookmarks to version 31.6.0-0.175.2.11.0.3.0 on Solaris 11.2Upgrade consolidation/desktop/desktop-incorporation to version 0.5.11-0.175.3.0.0.28.0 on Solaris 11.3Upgrade web/browser/firefox/multi-user-desktop to version 31.6.0-0.175.2.11.0.3.0 on Solaris 11.2 | May 29, 2017 | Jan 14, 2015 |
| Oracle_linux | — | Upgrade xulrunnerUpgrade xulrunner-develUpgrade firefoxUpgrade thunderbird | Oct 16, 2024 | Jan 14, 2015 |
| Suse | — | Upgrade mozilla-nss-certs-32bitUpgrade libfreebl3-x86Upgrade libsoftokn3-x86Upgrade libfreebl3-hmacUpgrade libfreebl3Upgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-develUpgrade mozilla-nss-certsUpgrade MozillaFirefox-develUpgrade mozilla-nssUpgrade libsoftokn3-hmacUpgrade MozillaThunderbirdUpgrade MozillaFirefoxUpgrade libfreebl3-32bitUpgrade mozilla-nss-toolsUpgrade mozilla-nss-32bitUpgrade libsoftokn3-hmac-32bitUpgrade libsoftokn3Upgrade MozillaFirefox-translations-otherUpgrade libsoftokn3-32bitUpgrade MozillaThunderbird-translations-commonUpgrade libfreebl3-hmac-32bitUpgrade mozilla-nss-develUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nss-x86Upgrade MozillaFirefox-translations | Dec 18, 2015 | Jan 14, 2015 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Nov 8, 2024 | Jan 14, 2015 |
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