On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will have an arbitrary domains as the dialog's location, spoofing of the origin of the modal dialog from the user view
Published Jun 11, 2018
5.3
MEDIUMCVSS 3.0
EPSS 1.16%
Description
On pages containing an iframe, the "data:" protocol can be used to create a modal dialog through Javascript that will have an arbitrary domains as the dialog's location, spoofing of the origin of the modal dialog from the user view. Note: This attack only affects installations with e10 multiprocess turned off. Installations with e10s turned on do not support the modal dialog functionality. This vulnerability affects Firefox < 56.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<56
- Version
No data.
No Red Hat product state for this CVE.
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:N/I:L/A:N
AV:N/AC:L/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.16% (0.01161) | 66.01th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.16% (0.01161) | 65.77th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.15% (0.00146) | 50.92th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.15% (0.00146) | 50.30th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.18% (0.00175) | 53.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00227) | 59.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://www.securityfocus.com/bid/101057 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039465 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1368981 x_refsource_CONFIRMExploitIssue Tracking
- https://www.mozilla.org/security/advisories/mfsa2017-21/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101057 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039465 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1368981 | x_refsource_CONFIRMExploitIssue Tracking | |
| https://www.mozilla.org/security/advisories/mfsa2017-21/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.