webkitgtk: Violation of iframe sandboxing policy
Published Oct 27, 2020
6.1
MEDIUMCVSS 3.1
EPSS 1.00%
Description
This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in Safari 13.0.1, iOS 13. Maliciously crafted web content may violate iframe sandboxing policy.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<13.0
- Version
-
- Version unspecifiedStatusaffectedConstraints<13
- Version
No data.
Red Hat Enterprise Linux 7
webkitgtk4-0:2.28.2-2.el7
Fixed · RHSA-2020:4035
Red Hat Enterprise Linux 8
webkit2gtk3-0:2.28.4-1.el8
Fixed · RHSA-2020:4451
Red Hat Enterprise Linux 6
webkitgtk
Out of support scope
Red Hat Enterprise Linux 7
webkitgtk3
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | webkitgtk4-0:2.28.2-2.el7 | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux 8 | webkit2gtk3-0:2.28.4-1.el8 | Fixed | RHSA-2020:4451 |
| Red Hat Enterprise Linux 6 | webkitgtk | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | webkitgtk3 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
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 2, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.00% (0.00995) | 61.33th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.00% (0.00995) | 61.13th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00084) | 36.49th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.08% (0.00084) | 34.87th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00078) | 31.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.10% (0.00098) | 0.28th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.10% (0.00098) | 0.00th | v1 |
References (7)
- https://access.redhat.com/security/cve/CVE-2019-8771 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1876619 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2019-8771
- https://support.apple.com/en-us/HT210605 x_refsource_MISCVendor Advisory
- https://support.apple.com/en-us/HT210606 x_refsource_MISCVendor Advisory
- https://webkitgtk.org/security/WSA-2019-0005.html
- https://www.cve.org/CVERecord?id=CVE-2019-8771
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-8771 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1876619 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-8771 | ||
| https://support.apple.com/en-us/HT210605 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/en-us/HT210606 | x_refsource_MISCVendor Advisory | |
| https://webkitgtk.org/security/WSA-2019-0005.html | ||
| https://www.cve.org/CVERecord?id=CVE-2019-8771 |
Change history (0)
No recorded changes yet.