CVE-2016-2820

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

Metrics

CVSS 3.0 4.3/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-284

Affected software

No affected versions have been published.

Timeline

Published
Apr 30, 2016
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2016-2820: Medium severity, CVSS 4.3 | Vulnix