A Blob URL can violate origin attribute segregation, allowing it to be accessed from a private browsing tab and for data to be passed between the private browsing tab and a normal tab
Published Jun 11, 2018
4.3
MEDIUMCVSS 3.0
EPSS 1.15%
Description
A Blob URL can violate origin attribute segregation, allowing it to be accessed from a private browsing tab and for data to be passed between the private browsing tab and a normal tab. This could allow for the leaking of private information specific to the private browsing context. This issue is mitigated by the requirement that the user enter the Blob URL manually in order for the access violation to occur. This vulnerability affects Firefox < 58.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<58
- Version
Configuration 2
- 14.04
- 16.04
- 17.10
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:R/S:U/C:L/I:N/A:N
AV:N/AC:M/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.15% (0.01152) | 65.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.17% (0.01167) | 63.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00424) | 60.11th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.25% (0.00247) | 63.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00280) | 67.48th | v3 (v2023.03.01) |
| Nov 2, 2023 | 0.28% (0.00280) | 64.93th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.40% (0.00400) | 70.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00447) | 71.03th | 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 | 1.25% (0.01247) | 30.57th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (5)
- http://www.securityfocus.com/bid/102786 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1421099 x_refsource_CONFIRMIssue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102786 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040270 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1421099 | x_refsource_CONFIRMIssue TrackingPermissions Required | |
| https://usn.ubuntu.com/3544-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.mozilla.org/security/advisories/mfsa2018-02/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.