CVE-2020-9843 - webkitgtk: Input validation issue may lead to cross site scripting

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HIGH

webkitgtk: Input validation issue may lead to cross site scripting

Published Jun 9, 2020

7.1

HIGH

CVSS 3.1

EPSS 1.13%

Description

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. Processing maliciously crafted web content may lead to a cross site scripting attack.

Affected products

Vendor Apple Product Safari Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <Safari 13.1.1
Vendor Apple Product iCloud for Windows Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iCloud for Windows 11.2
Vendor Apple Product iCloud for Windows (Legacy) Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iCloud for Windows 7.19
Vendor Apple Product iOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iOS 13.5 and iPadOS 13.5
Vendor Apple Product iTunes for Windows Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <iTunes 12.10.7 for Windows
Vendor Apple Product tvOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <tvOS 13.4.5
Vendor Apple Product watchOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <watchOS 6.2.5

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

Version	Status	Constraints
unspecified	affected	<Safari 13.1.1

Apple

iCloud for Windows

n/a

Version	Status	Constraints
unspecified	affected	<iCloud for Windows 11.2

Apple

iCloud for Windows (Legacy)

n/a

Version	Status	Constraints
unspecified	affected	<iCloud for Windows 7.19

Apple

iOS

n/a

Version	Status	Constraints
unspecified	affected	<iOS 13.5 and iPadOS 13.5

Apple

iTunes for Windows

n/a

Version	Status	Constraints
unspecified	affected	<iTunes 12.10.7 for Windows

Apple

tvOS

n/a

Version	Status	Constraints
unspecified	affected	<tvOS 13.4.5

Apple

watchOS

n/a

Version	Status	Constraints
unspecified	affected	<watchOS 6.2.5

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

Will not fix

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	Will not fix	n/a

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (13)

https://access.redhat.com/security/cve/CVE-2020-9843
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1879566
Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-30622
Advisory
https://nvd.nist.gov/vuln/detail/CVE-2020-9843
https://support.apple.com/HT211168
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211171
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211175
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211177
x_refsource_MISCBroken LinkVendor Advisory
https://support.apple.com/HT211178
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211179
x_refsource_MISCVendor Advisory
https://support.apple.com/HT211181
x_refsource_MISCVendor Advisory
https://webkitgtk.org/security/WSA-2020-0006.html
https://www.cve.org/CVERecord?id=CVE-2020-9843

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2020-9843		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1879566		Issue Tracking
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-30622		Advisory
https://nvd.nist.gov/vuln/detail/CVE-2020-9843
https://support.apple.com/HT211168		x_refsource_MISCVendor Advisory
https://support.apple.com/HT211171		x_refsource_MISCVendor Advisory
https://support.apple.com/HT211175		x_refsource_MISCVendor Advisory
https://support.apple.com/HT211177		x_refsource_MISCBroken LinkVendor Advisory
https://support.apple.com/HT211178		x_refsource_MISCVendor Advisory
https://support.apple.com/HT211179		x_refsource_MISCVendor Advisory
https://support.apple.com/HT211181		x_refsource_MISCVendor Advisory
https://webkitgtk.org/security/WSA-2020-0006.html
https://www.cve.org/CVERecord?id=CVE-2020-9843