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.
CVSS Details
- CVSS 3.1 Base Score: 5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade xulrunnerUpgrade xulrunner-develUpgrade firefoxUpgrade thunderbird | Dec 1, 2016 | Jan 14, 2015 |
| Freebsd | — | Upgrade linux-firefoxUpgrade firefoxUpgrade thunderbirdUpgrade libxulUpgrade seamonkeyUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade firefox-esr | Dec 10, 2025 | Jan 14, 2015 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird.Upgrade www-client/seamonkey-bin.Upgrade www-client/seamonkey.Upgrade dev-libs/nspr.Upgrade www-client/firefox-bin.Upgrade www-client/firefox. | 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 2.32.0 | 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 web/browser/firefox/multi-user-desktop 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 | Jan 14, 2015 |
| Oracle_linux | — | Upgrade xulrunner-develUpgrade xulrunnerUpgrade firefoxUpgrade thunderbird | Oct 16, 2024 | Jan 14, 2015 |
| Suse | — | Upgrade mozilla-nss-certsUpgrade MozillaThunderbirdUpgrade mozilla-nssUpgrade libsoftokn3-hmacUpgrade MozillaThunderbird-develUpgrade MozillaFirefox-develUpgrade libsoftokn3-x86Upgrade libfreebl3Upgrade MozillaThunderbird-translations-otherUpgrade libfreebl3-x86Upgrade libfreebl3-hmacUpgrade mozilla-nss-certs-32bitUpgrade libfreebl3-32bitUpgrade MozillaFirefoxUpgrade MozillaFirefox-translationsUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-commonUpgrade libfreebl3-hmac-32bitUpgrade mozilla-nss-develUpgrade MozillaFirefox-translations-otherUpgrade mozilla-nss-x86Upgrade libsoftokn3-hmac-32bitUpgrade libsoftokn3-32bitUpgrade mozilla-nss-32bitUpgrade mozilla-nss-toolsUpgrade libsoftokn3 | Dec 18, 2015 | Jan 14, 2015 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Nov 8, 2024 | Jan 14, 2015 |
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