webkitgtk: input validation issue may lead to a cross site scripting
Published Oct 16, 2020
7.1
HIGHCVSS 3.1
EPSS 1.50%
Description
An input validation issue was addressed with improved input validation. This issue is fixed in iOS 14.0 and iPadOS 14.0, tvOS 14.0, watchOS 7.0, Safari 14.0, iCloud for Windows 11.4, iCloud for Windows 7.21. Processing maliciously crafted web content may lead to a cross site scripting attack.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<Safari 14.0
- Version
-
- Version unspecifiedStatusaffectedConstraints<iCloud for Windows 11.4
- Version
-
- Version unspecifiedStatusaffectedConstraints<iCloud for Windows 7.21
- Version
-
- Version unspecifiedStatusaffectedConstraints<iOS 14.0 and iPadOS 14.0
- Version
-
- Version unspecifiedStatusaffectedConstraints<tvOS 14.0
- Version
-
- Version unspecifiedStatusaffectedConstraints<watchOS 7.0
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apple | Safari | n/a |
| ||||||
| Apple | iCloud for Windows | n/a |
| ||||||
| Apple | iCloud for Windows (Legacy) | n/a |
| ||||||
| Apple | iOS | n/a |
| ||||||
| Apple | tvOS | n/a |
| ||||||
| Apple | watchOS | n/a |
|
No data.
Red Hat Enterprise Linux 7 Extended Lifecycle Support
webkitgtk4-0:2.48.3-2.el7_9
Fixed · RHSA-2025:10364
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
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | webkitgtk4-0:2.48.3-2.el7_9 | Fixed | RHSA-2025:10364 |
| 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 | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
webkit2gtk3 as shipped with Red Hat Enterprise Linux 8 is not affected by this flaw, as the version shipped is newer than the affected version range.
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:L
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/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 3, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.50% (0.01497) | 73.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.48% (0.01479) | 70.44th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.27% (0.00272) | 68.23th | v3 (v2023.03.01) |
| Mar 5, 2024 | 0.27% (0.00272) | 67.17th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00312) | 69.33th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.31% (0.00312) | 66.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00221) | 58.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.61% (0.11613) | 88.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.88% (0.01882) | 48.10th | v5 (v2026.06.15) |
| Jan 6, 2022 | 1.88% (0.01882) | 47.58th | v1 |
| Sep 1, 2021 | 0.43% (0.00426) | 25.56th | v1 |
| Apr 14, 2021 | 0.43% (0.00426) | 0.00th | v1 |
References (16)
- http://seclists.org/fulldisclosure/2020/Nov/18 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/19 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/20 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/22 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/23/3 mailing-listx_refsource_MLISTMailing List
- https://access.redhat.com/security/cve/CVE-2020-9952 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1901219 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2020-9952
- https://security.gentoo.org/glsa/202012-10 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://support.apple.com/HT211843 x_refsource_MISCRelease NotesVendor Advisory
- https://support.apple.com/HT211844 x_refsource_MISCRelease NotesVendor Advisory
- https://support.apple.com/HT211845 x_refsource_MISCRelease NotesVendor Advisory
- https://support.apple.com/HT211846 x_refsource_MISCRelease NotesVendor Advisory
- https://support.apple.com/HT211847 x_refsource_MISCRelease NotesVendor Advisory
- https://support.apple.com/HT211850 x_refsource_MISCVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2020-9952
Change history (0)
No recorded changes yet.