CVE-2020-12424

MEDIUM

Firefox < 78.0 - Permission Prompt Bypass via WebRTC URI

Title source: llm
STIX 2.1

Description

When constructing a permission prompt for WebRTC, a URI was supplied from the content process. This URI was untrusted, and could have been the URI of an origin that was previously granted permission; bypassing the prompt. This vulnerability affects Firefox < 78.

References (5)

Core 5
Core References
Issue Tracking, Permissions Required x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1562600
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202007-10

Scores

CVSS v3 6.5
EPSS 0.0016
EPSS Percentile 36.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

CWE
CWE-276
Status published
Products (3)
mozilla/firefox < 78.0
opensuse/leap 15.1
opensuse/leap 15.2
Published Jul 09, 2020
Tracked Since Feb 18, 2026