CVE-2018-12369

9.8 CRITICAL

Published: October 18, 2018 Modified: November 25, 2025

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.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.securityfocus.com/bid/104561

Source: security@mozilla.org

Third Party Advisory VDB Entry

http://www.securitytracker.com/id/1041193

Source: security@mozilla.org

Third Party Advisory VDB Entry

https://bugzilla.mozilla.org/show_bug.cgi?id=1454909

Source: security@mozilla.org

Issue Tracking Permissions Required Vendor Advisory

https://security.gentoo.org/glsa/201810-01

Source: security@mozilla.org

Third Party Advisory

https://usn.ubuntu.com/3705-1/

Source: security@mozilla.org

Third Party Advisory

https://www.mozilla.org/security/advisories/mfsa2018-15/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2018-16/

Source: security@mozilla.org

Vendor Advisory

http://www.securityfocus.com/bid/104561