VULNERABILITY INTELLIGENCE

CVE-2016-2820

CVSS score4.3 MEDIUM
EPSS probability1.41%
CISA KEVNot currently listed
Published2016-04-30
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Weakness classification

  • CWE-284: Improper Access Control

Primary references