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CVE-2019-8503

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2,...

8.8 HighFix available

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.00%Up 1.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
CVE-2019-8503
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
CVE-2019-8503
Updated
2026-11-02
EUVDEUVD-2019-17893 No score

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
EUVD-2019-17893
Updated
2026-11-03
GitHub AdvisoriesGHSA-66q9-mrhp-9hrp No score

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2,...

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
GHSA-66q9-mrhp-9hrp
Updated
2026-11-02
OSV 8.8

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
CVE-2019-8503
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-8503 8.8

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
DEBIAN-CVE-2019-8503
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVRHBA-2019:2261 6.3

Red Hat Bug Fix Advisory: webkitgtk4 bug fix update

Record
RHBA-2019:2261
CVSS 3.0
6.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2019-8503 8.8

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. A malicious website may be able to execute scripts in the context of another website.

Record
UBUNTU-CVE-2019-8503
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2019:1374-1 No score

Security update for webkit2gtk3

This update for webkit2gtk3 to version 2.24.1 fixes the following issues:

Security issues fixed:

  • CVE-2019-6201, CVE-2019-6251, CVE-2019-7285, CVE-2019-7292, CVE-2019-8503, CVE-2019-8506, CVE-2019-8515, CVE-2019-8518, CVE-2019-8523, CVE-2019-8524, CVE-2019-8535, CVE-2019-8536, CVE-2019-8544, CVE-2019-8551, CVE-2019-8558, CVE-2019-8559, CVE-2019-8563, CVE-2019-11070 (bsc#1132256).

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1374-1
Updated
2026-11-02
OSVSUSE-SU-2019:1137-1 No score

Security update for webkit2gtk3

This update for webkit2gtk3 to version 2.24.1 fixes the following issues:

Security issues fixed:

  • CVE-2019-6201, CVE-2019-6251, CVE-2019-7285, CVE-2019-7292, CVE-2019-8503, CVE-2019-8506, CVE-2019-8515, CVE-2019-8518, CVE-2019-8523, CVE-2019-8524, CVE-2019-8535, CVE-2019-8536, CVE-2019-8544, CVE-2019-8551, CVE-2019-8558, CVE-2019-8559, CVE-2019-8563, CVE-2019-11070 (bsc#1132256).
Record
SUSE-SU-2019:1137-1
Updated
2026-11-02
OSVSUSE-SU-2019:1155-1 No score

Security update for webkit2gtk3

This update for webkit2gtk3 to version 2.24.1 fixes the following issues:

Security issues fixed:

  • CVE-2019-6201, CVE-2019-6251, CVE-2019-7285, CVE-2019-7292, CVE-2019-8503, CVE-2019-8506, CVE-2019-8515, CVE-2019-8524, CVE-2019-8535, CVE-2019-8536, CVE-2019-8544, CVE-2019-8551, CVE-2019-8558, CVE-2019-8559, CVE-2019-8563, CVE-2019-11070 (bsc#1132256).
Record
SUSE-SU-2019:1155-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
webkit2gtk
Debian:12
 before 2.24.1-1
2.24.1-1
webkit2gtk
Debian:13
 before 2.24.1-1
2.24.1-1
webkit2gtk
Debian:14
 before 2.24.1-1
2.24.1-1
webkitgtk4
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-plugin-process-gtk2
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-doc
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
Show 50 moreShow less
Affected packages
PackageAffectedFixed
webkitgtk4
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-plugin-process-gtk2
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-doc
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-plugin-process-gtk2
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-doc
Red Hat:enterprise_linux:7::server
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-jsc-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-plugin-process-gtk2
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkitgtk4-doc
Red Hat:enterprise_linux:7::workstation
From an advisory covering 6 CVEs
 before 0:2.22.7-2.el7
0:2.22.7-2.el7
webkit2gtk3
SUSE:Linux Enterprise Module for Basesystem 15
From an advisory covering 18 CVEs
 before 2.24.1-3.24.1
2.24.1-3.24.1
webkit2gtk3
SUSE:Linux Enterprise Module for Desktop Applications 15
From an advisory covering 18 CVEs
 before 2.24.1-3.24.1
2.24.1-3.24.1
webkit2gtk3
SUSE:OpenStack Cloud 7
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Desktop 12 SP3
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Desktop 12 SP4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Software Development Kit 12 SP3
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Software Development Kit 12 SP4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server 12 SP2-LTSS
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server 12 SP2-BCL
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server 12 SP3
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server 12 SP4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Workstation Extension 12 SP3
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Linux Enterprise Workstation Extension 12 SP4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
webkit2gtk3
SUSE:Enterprise Storage 4
From an advisory covering 16 CVEs
 before 2.24.1-2.41.5
2.24.1-2.41.5
qtwebkit-opensource-src
Ubuntu:16.04:LTS
 All versions, plus listed versions
5.4.2+dfsg-1ubuntu2.15.5.1+dfsg-2ubuntu1
 None known
webkit2gtk
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.8.5+dfsg1-32.10.3+dfsg1-12.10.4+dfsg1-12.10.5-12.10.6-1
Show 21 moreShow less
2.10.6-1ubuntu12.10.8-1ubuntu12.10.9-1ubuntu12.12.5-0ubuntu0.16.04.12.14.2-0ubuntu0.16.04.12.14.3-0ubuntu0.16.04.12.14.5-0ubuntu0.16.04.12.16.1-0ubuntu0.16.04.12.16.1-0ubuntu0.16.04.22.16.2-0ubuntu0.16.04.12.16.3-0ubuntu0.16.04.12.16.6-0ubuntu0.16.04.12.18.0-0ubuntu0.16.04.22.18.3-0ubuntu0.16.04.12.18.4-0ubuntu0.16.04.12.18.5-0ubuntu0.16.04.12.18.6-0ubuntu0.16.04.12.20.1-0ubuntu0.16.04.12.20.2-0ubuntu0.16.04.12.20.3-0ubuntu0.16.04.12.20.5-0ubuntu0.16.04.1
 None known
qtwebkit-source
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.3.2-0ubuntu102.3.2-0ubuntu11
 None known
webkitgtk
Ubuntu:16.04:LTS
 All versions, plus listed versions
2.4.9-2ubuntu22.4.10-0ubuntu12.4.11-0ubuntu0.1
 None known
webkit2gtk
Ubuntu:18.04:LTS
 before 2.22.6-0ubuntu0.18.04.1, plus listed versions
2.18.0-22.18.0-2build12.18.2-12.18.3-12.18.4-1
Show 14 moreShow less
2.18.6-12.19.91-1ubuntu12.19.92-12.20.0-12.20.0-22.20.0-2ubuntu12.20.1-12.20.2-0ubuntu0.18.04.12.20.3-0ubuntu0.18.04.12.20.5-0ubuntu0.18.04.12.22.2-0ubuntu0.18.04.12.22.2-0ubuntu0.18.04.22.22.4-0ubuntu0.18.04.12.22.5-0ubuntu0.18.04.1
2.22.6-0ubuntu0.18.04.1
qtwebkit-opensource-src
Ubuntu:18.04:LTS
 All versions, plus listed versions
5.9.1+dfsg-5ubuntu15.9.1+dfsg-5ubuntu35.212.0~alpha2-5build25.212.0~alpha2-5build45.212.0~alpha2-75.212.0~alpha2-7build25.212.0~alpha2-7ubuntu1
 None known
qtwebkit-source
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.3.2-0ubuntu13
 None known
webkitgtk
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.4.11-32.4.11-3ubuntu22.4.11-3ubuntu3
 None known
qtwebkit-opensource-src
Ubuntu:20.04:LTS
 All versions, plus listed versions
5.212.0~alpha3-35.212.0~alpha3-55.212.0~alpha3-65.212.0~alpha3-75.212.0~alpha4-15.212.0~alpha4-1ubuntu15.212.0~alpha4-1ubuntu25.212.0~alpha4-1ubuntu2.1
 None known
qtwebkit-opensource-src
Ubuntu:22.04:LTS
 All versions, plus listed versions
5.212.0~alpha4-125.212.0~alpha4-135.212.0~alpha4-145.212.0~alpha4-14build15.212.0~alpha4-14ubuntu25.212.0~alpha4-15ubuntu1
 None known
qtwebkit-opensource-src
Ubuntu:24.04:LTS
 All versions, plus listed versions
5.212.0~alpha4-335.212.0~alpha4-33build15.212.0~alpha4-345.212.0~alpha4-34ubuntu35.212.0~alpha4-34ubuntu45.212.0~alpha4-36
 None known
webkit2gtk3
openSUSE:Leap 15.0
From an advisory covering 18 CVEs
 before 2.24.1-lp150.2.19.1
2.24.1-lp150.2.19.1

History

History
RecordedChangedSources
affected, facts
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-8503 is a high vulnerability (CVSS 8.8) in Apple Icloud, published May 3, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.00%, the 80th percentile. Fixed in webkit2gtk 2.24.1-1.

References

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