CVE-2020-12424

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-276

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 78

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1562600Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202007-10Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1562600Issue Tracking, Permissions Required
https://security.gentoo.org/glsa/202007-10Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-24/Vendor Advisory

Timeline

Published: Jul 9, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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