CVE-2018-12369

moderate-risk
Published 2018-10-18

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.

Do I need to act?

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0.56% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Mozilla Canonical

References (14)

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/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-16/
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/
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2018-16/
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 12/34 · Low