WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR < 60.1 and Firefox < 61.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Oct 18, 2018 |
| Freebsd | — | Upgrade linux-firefoxUpgrade libxulUpgrade thunderbirdUpgrade waterfoxUpgrade firefoxUpgrade seamonkeyUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade linux-thunderbird | Jun 27, 2018 | Jun 26, 2018 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Oct 3, 2018 | Oct 2, 2018 |
| Mfsa2018 15 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 61.0 | Jun 27, 2018 | Jun 26, 2018 |
| Mfsa2018 16 | — | Upgrade to Mozilla Firefox ESR version 60.1Upgrade to the latest version of Mozilla Firefox | Jun 27, 2018 | Jun 26, 2018 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-devel | Jun 29, 2018 | Jun 26, 2018 |
| Ubuntu | — | Upgrade firefox | Jul 12, 2018 | Jun 26, 2018 |
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