Vulnerability · Published Jul 9, 2020 · Assigned by mozilla

CVE-2020-12424

Medium 6.5

In plain English

A medium-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.6%top 24.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20firefox78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.21firefox78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.22firefox78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.23firefox78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.21librewolf78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.22librewolf78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.23librewolf78.0-r0ALPINE-CVE-2020-12424
Alpine:v3.24librewolf78.0-r0ALPINE-CVE-2020-12424

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 78

References