WebExtensions could use the "mozAddonManager" API by modifying the CSP headers on sites with the appropriate permissions and then using host requests to redirect script loads to a malicious site. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 51.
CVSS Details
- CVSS 3.1 Base Score: 6.1
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Freebsd | — | Upgrade libxulUpgrade firefoxUpgrade linux-seamonkeyUpgrade seamonkeyUpgrade linux-firefoxUpgrade thunderbirdUpgrade linux-thunderbirdUpgrade firefox-esr | Jan 25, 2017 | Jan 24, 2017 |
| Mfsa2017 01 | — | Upgrade to Mozilla Firefox version 51.0 | Jul 12, 2018 | Jun 11, 2018 |
| Suse | — | Upgrade mozillafirefox-translations-otherUpgrade mozillafirefox-develUpgrade mozillafirefoxUpgrade mozillafirefox-translations-common | Feb 2, 2017 | Jan 24, 2017 |
| Ubuntu | — | Upgrade firefox | Jan 28, 2017 | Jan 24, 2017 |
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