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Fencer Vulns
high 7.5

CVE-2023-42843 json

An inconsistent user interface issue was addressed with improved state management.

published 2024-02-21 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-47264

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, Safari 17.1, macOS Sonoma 14.1. Visiting a malicious website may lead to address bar spoofing.

Patch / fix

  • Apple iOS and iPadOS 16.7, 17.1
  • Apple Safari 17.1
  • Apple macOS 14.1
  • apple ios_and_ipados 16.7, 17.1
  • wpewebkit Debian 14, Debian 13 2.44.1-1
  • webkit2gtk Debian 12 2.44.1-1~deb12u1
  • webkit2gtk Debian 14, Debian 13 2.44.0-1

debian advisories DEBIAN-CVE-2023-42843

  • webkit2gtk Ubuntu 22.04 LTS 2.44.0-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2023-42843

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • webkit2gtk3 RHEL 9 2.44.3-2.el9
  • webkit2gtk3-jsc RHEL 9 2.44.3-2.el9
  • webkitgtk4 RHEL 7 ELS 2.48.3-2.el7_9
  • webkitgtk4-jsc RHEL 7 ELS 2.48.3-2.el7_9

red hat advisories RHSA-2025:10364RHSA-2024:9144

  • webkit2gtk3 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
  • webkit2gtk4 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
  • webkit2gtk3-soup2 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 2.52.0-150400.4.137.3
  • webkit2gtk3 SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 2.44.2-4.7.1
  • webkit2gtk3 SLE Module for Desktop Applications 15 SP6, openSUSE Leap 15.6 2.44.2-150600.12.3.1
  • webkit2gtk4 SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.44.2-150600.12.3.1
  • webkit2gtk3-soup2 SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.44.2-150600.12.3.1
  • webkit2gtk3 SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 2.44.0-4.3.2

suse advisories SUSE-SU-2026:1150-1SUSE-SU-2026:1139-1SUSE-SU-2024:1976-1SUSE-SU-2024:1944-1SUSE-SU-2024:1293-1SUSE-SU-2024:1270-1

  • webkit2gtk3 AlmaLinux 9 2.44.3-2.el9
  • webkit2gtk3-jsc AlmaLinux 9 2.44.3-2.el9

almalinux advisories ALSA-2024:9144

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-42843 updated cvss 5.4

webkit: visiting a malicious website may lead to address bar spoofing

  • Red Hat Enterprise Linux 6 webkitgtk Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 webkit2gtk3, webkit2gtk3-jsc, webkit2gtk3-plugin-process-gtk2
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.44.3-2.el9, webkit2gtk3-jsc 2.44.3-2.el9
    fixed: vendor fix RHSA-2024:9144
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.48.3-2.el7_9, webkitgtk4-jsc 2.48.3-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.48.3-2.el7_9, webkitgtk4-devel 2.48.3-2.el7_9, webkitgtk4-debuginfo 2.48.3-2.el7_9, webkitgtk4-jsc-devel 2.48.3-2.el7_9
    fixed: vendor fix RHSA-2025:10364

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Apple iOS and iPadOS
  • Apple Safari
  • Apple macOS
  • apple ios_and_ipados

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.