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The navigator.sendBeacon implementation in Mozilla Firefox before 37.0, Firefox ESR 31.x before 31.6, and Thunderbird before 31.6 processes HTTP 30x status codes for redirects after a preflight request has occurred, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site, a similar issue to CVE-2014-8638.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade xulrunner-develUpgrade xulrunnerUpgrade thunderbirdUpgrade firefox | Dec 1, 2016 | Apr 1, 2015 |
| Freebsd | — | Upgrade linux-thunderbirdUpgrade linux-firefoxUpgrade firefox-esrUpgrade libxulUpgrade firefoxUpgrade seamonkeyUpgrade linux-seamonkeyUpgrade thunderbird | Dec 10, 2025 | Mar 31, 2015 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird-bin. | Oct 30, 2017 | Apr 1, 2015 |
| Mfsa2015 37 | — | Upgrade to Mozilla Firefox ESR version 31.6Upgrade to Mozilla Firefox version 37.0Upgrade to the latest version of Mozilla Firefox | Apr 2, 2015 | Apr 1, 2015 |
| Mozilla Seamonkey | — | Upgrade to the latest version of Mozilla SeaMonkeyUpgrade to Mozilla SeaMonkey version 2.35 | Oct 22, 2015 | Apr 1, 2015 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 31.6 | Apr 2, 2015 | Apr 1, 2015 |
| Oracle Solaris | — | Upgrade web/browser/firefox/multi-user-desktop to version 31.6.0-0.175.2.11.0.3.0 on Solaris 11.2Upgrade 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 11.3 | May 29, 2017 | Apr 1, 2015 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade xulrunner-develUpgrade xulrunner | Oct 16, 2024 | Apr 1, 2015 |
| Suse | — | Upgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbird-develUpgrade MozillaFirefox-translationsUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbirdUpgrade MozillaFirefox-devel | Dec 18, 2015 | Apr 1, 2015 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Nov 8, 2024 | Apr 1, 2015 |
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