Mozilla: iframe src fragment timing attack can reveal cross-origin data (MFSA 2016-85)
Published Sep 22, 2016
8.8
HIGHCVSS 3.0
EPSS 1.49%
Description
Mozilla Firefox before 49.0 allows remote attackers to bypass the Same Origin Policy via a crafted fragment identifier in the SRC attribute of an IFRAME element, leading to insufficient restrictions on link-color information after a document is resized.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | 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:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
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 | 1.49% (0.01489) | 73.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.49% (0.01494) | 70.71th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00095) | 24.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.89% (0.00893) | 83.33th | v3 (v2023.03.01) |
| Mar 1, 2024 | 0.89% (0.00893) | 82.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.89% (0.00893) | 80.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (10)
- http://www.mozilla.org/security/announce/2016/mfsa2016-85.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/93052 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036852 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2016-5283 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=928187 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1377670 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-5283
- https://security.gentoo.org/glsa/201701-15 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-5283
- https://www.mozilla.org/security/announce/2016/mfsa2016-85.html
| Link | Providers | Tags |
|---|---|---|
| http://www.mozilla.org/security/announce/2016/mfsa2016-85.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/93052 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1036852 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2016-5283 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=928187 | x_refsource_CONFIRMIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1377670 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-5283 | ||
| https://security.gentoo.org/glsa/201701-15 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2016-5283 | ||
| https://www.mozilla.org/security/announce/2016/mfsa2016-85.html |
Change history (0)
No recorded changes yet.