Mozilla: Firefox Health Reports could accept events from untrusted domains (MFSA 2016-48)
Published Apr 30, 2016
4.3
MEDIUMCVSS 3.0
EPSS 1.41%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.41% (0.01410) | 71.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.41% (0.01410) | 69.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00421) | 59.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.91% (0.00909) | 83.48th | v3 (v2023.03.01) |
| Mar 5, 2024 | 0.91% (0.00909) | 82.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.91% (0.00909) | 80.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.78% (0.01776) | 76.86th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.78% (0.01776) | 76.81th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.78% (0.01776) | 74.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.78% (0.01776) | 53.99th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html vendor-advisoryx_refsource_SUSE
- http://www.mozilla.org/security/announce/2016/mfsa2016-48.html x_refsource_CONFIRMVendor Advisory
- http://www.securitytracker.com/id/1035692 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2936-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2936-2 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2936-3 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2016-2820 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=870870 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1330287 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2820
- https://security.gentoo.org/glsa/201701-15 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-2820
- https://www.mozilla.org/security/announce/2016/mfsa2016-48.html
Change history (0)
No recorded changes yet.