The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 does not prevent acquisition of chrome privileges during calls to content level constructors, which allows remote attackers to bypass certain read-only restrictions and conduct cross-site scripting (XSS) attacks via a crafted web site.
CVSS Details
- CVSS 3.1 Base Score: 6.1
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade xulrunner-develUpgrade xulrunnerUpgrade thunderbirdUpgrade firefox | Dec 1, 2016 | May 16, 2013 |
| Freebsd | — | Upgrade firefoxUpgrade thunderbirdUpgrade seamonkeyUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade linux-firefox | Dec 10, 2025 | May 15, 2013 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade www-client/seamonkey.Upgrade www-client/firefox-bin.Upgrade www-client/seamonkey-bin. | Oct 30, 2017 | May 16, 2013 |
| Mfsa2013 42 | — | Upgrade to Mozilla Firefox ESR version 17.0.6Upgrade to Mozilla Firefox version 21.0 | May 18, 2013 | May 16, 2013 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird ESR version 17.0.6Upgrade to Mozilla Thunderbird version 17.0.6 | May 18, 2013 | May 16, 2013 |
| Oracle_linux | — | Upgrade firefoxUpgrade xulrunnerUpgrade thunderbirdUpgrade xulrunner-devel | Oct 16, 2024 | May 16, 2013 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 14, 2013 |
| Suse | — | Upgrade mozilla-nspr-develUpgrade xulrunner-buildsymbolsUpgrade mozilla-jsUpgrade mozillafirefox-branding-upstreamUpgrade mozilla-nsprUpgrade mozillafirefox-buildsymbolsUpgrade mozillathunderbird-translations-otherUpgrade MozillaThunderbird-buildsymbolsUpgrade mozillafirefox-translations-commonUpgrade mozilla-nspr-32bitUpgrade xulrunner-32bitUpgrade mozilla-js-32bitUpgrade mozillafirefox-translations-otherUpgrade MozillaThunderbird-develUpgrade xulrunnerUpgrade mozillafirefoxUpgrade mozillathunderbirdUpgrade xulrunner-develUpgrade mozillafirefox-develUpgrade mozillathunderbird-translations-commonUpgrade MozillaFirefox-branding-openSUSEUpgrade enigmail | Feb 17, 2015 | May 16, 2013 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Nov 8, 2024 | May 16, 2013 |
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