Mozilla: Restricted external resources can be loaded by SVG images through data URLs (MFSA 2016-94, MFSA 2016-95)
Published Jun 11, 2018
7.5
HIGHCVSS 3.0
EPSS 9.81%
Description
External resources that should be blocked when loaded by SVG images can bypass security restrictions through the use of "data:" URLs. This could allow for cross-domain data leakage. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<50.1
- Version
-
- Version unspecifiedStatusaffectedConstraints<45.6
- Version
-
- Version unspecifiedStatusaffectedConstraints<45.6
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| ||||||
| Mozilla | Firefox ESR | n/a |
| ||||||
| Mozilla | Thunderbird | n/a |
|
Configuration 1
- 9.0
Configuration 2
- 5.0
- 6.0
- 7.0
- 5.0
- 6.0
- 7.0
- 5.0
- 6.0
- 7.0
- 7.3
- 7.4
- 7.3
- 7.4
- 7.5
- 5.0
- 6.0
- 7.0
Configuration 3
- < 45.6.0
No data.
Red Hat Enterprise Linux 5
firefox-0:45.6.0-1.el5_11
Fixed · RHSA-2016:2946
Red Hat Enterprise Linux 5
thunderbird-0:45.6.0-1.el5_11
Fixed · RHSA-2016:2973
Red Hat Enterprise Linux 6
firefox-0:45.6.0-1.el6_8
Fixed · RHSA-2016:2946
Red Hat Enterprise Linux 6
thunderbird-0:45.6.0-1.el6_8
Fixed · RHSA-2016:2973
Red Hat Enterprise Linux 7
firefox-0:45.6.0-1.el7_3
Fixed · RHSA-2016:2946
Red Hat Enterprise Linux 7
thunderbird-0:45.6.0-1.el7_3
Fixed · RHSA-2016:2973
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:45.6.0-1.el5_11 | Fixed | RHSA-2016:2946 |
| Red Hat Enterprise Linux 5 | thunderbird-0:45.6.0-1.el5_11 | Fixed | RHSA-2016:2973 |
| Red Hat Enterprise Linux 6 | firefox-0:45.6.0-1.el6_8 | Fixed | RHSA-2016:2946 |
| Red Hat Enterprise Linux 6 | thunderbird-0:45.6.0-1.el6_8 | Fixed | RHSA-2016:2973 |
| Red Hat Enterprise Linux 7 | firefox-0:45.6.0-1.el7_3 | Fixed | RHSA-2016:2946 |
| Red Hat Enterprise Linux 7 | thunderbird-0:45.6.0-1.el7_3 | Fixed | RHSA-2016:2973 |
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:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 9.81% (0.09807) | 95.41th | v5 (v2026.06.15) |
| Sep 22, 2026 | 9.81% (0.09807) | 95.33th | v5 (v2026.06.15) |
| Sep 21, 2026 | 2.91% (0.02908) | 86.32th | v5 (v2026.06.15) |
| Sep 6, 2026 | 9.81% (0.09807) | 95.22th | v5 (v2026.06.15) |
| Sep 5, 2026 | 2.91% (0.02908) | 86.02th | v5 (v2026.06.15) |
| Aug 30, 2026 | 9.81% (0.09807) | 95.20th | v5 (v2026.06.15) |
| Aug 28, 2026 | 2.91% (0.02908) | 85.94th | v5 (v2026.06.15) |
| Aug 24, 2026 | 9.81% (0.09807) | 95.17th | v5 (v2026.06.15) |
| Aug 23, 2026 | 2.91% (0.02908) | 85.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.93% (0.09931) | 94.97th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.50% (0.01497) | 79.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.70% (0.03697) | 79.63th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.52% (0.01525) | 80.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.62% (0.00617) | 79.49th | v3 (v2023.03.01) |
| Mar 30, 2024 | 0.61% (0.00608) | 78.19th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.61% (0.00608) | 76.18th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.72% (0.00721) | 78.49th | v3 (v2023.03.01) |
| Jun 5, 2023 | 0.89% (0.00888) | 80.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.16% (0.01157) | 82.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
References (15)
- http://rhn.redhat.com/errata/RHSA-2016-2946.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2973.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/94885 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037461 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-9900 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1319122 x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1404090 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-9900
- https://security.gentoo.org/glsa/201701-15 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-9900
- https://www.debian.org/security/2017/dsa-3757 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-94/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-95/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-96/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/announce/2016/mfsa2016-95/#CVE-2016-9900
Change history (0)
No recorded changes yet.