4.3
CVSSv2

CVE-2020-15666

Published: 01/10/2020 Updated: 21/07/2021
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Vulnerability Summary

When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

mozilla firefox

Vendor Advisories

Mozilla Foundation Security Advisory 2020-36 Security Vulnerabilities fixed in Firefox 80 Announced August 25, 2020 Impact high Products Firefox Fixed in Firefox 80 ...
Mozilla Foundation Security Advisory 2020-39 Security Vulnerabilities fixed in Firefox for Android 80 Announced September 2, 2020 Impact high Products Firefox for Android Fixed in Firefox for Android 80 ...