Critical severity · published Oct 18, 2018
CVE-2018-12369
WebExtensions bundled with embedded experiments were not correctly checked for proper authorization
9.8
CVSS
2.5%
EPSS
No
On KEV
Description
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 60.1.0; before 61.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10; 18.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12369
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-12369
Third Party Advisory
http://www.securityfocus.com/bid/104561
Third Party Advisory
http://www.securitytracker.com/id/1041193
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1454909
Third Party Advisory
https://security.gentoo.org/glsa/201810-01
Third Party Advisory
https://usn.ubuntu.com/3705-1/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2018-15/
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