CVE-2023-42843

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.

Published: 2024-02-21 Last update: 2024-12-09 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-42843 is rated Low Risk (25.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-42843

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.58% 0.08% -0.50%
2 2025-11-18 0.07% 0.58% +0.51%
3 2025-04-15 — 0.07% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-42843

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-42843

OS Trackers for CVE-2023-42843

vendor priority summary link
debian not yet assigned CVE-2023-42843 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 8, open 2. https://security-tracker.debian.org/tracker/CVE-2023-42843
gentoo high CVE-2023-42843: 1 GLSA(s) (202407-13), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-42843
redhat medium — https://access.redhat.com/security/cve/CVE-2023-42843
suse high CVE-2023-42843 severity important: SUSE including 107 source package names (WebKitGTK-4.0-lang-2.44.0-150400.4.78.1, WebKitGTK-4.0-lang-2.44.2-150600.12.3.1, …), 381 product×package rows across 36 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 9, … (36 product lines)): Fixed 381. https://www.suse.com/security/cve/CVE-2023-42843/
ubuntu medium CVE-2023-42843 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 33 status rows across 7 suites (bionic, focal, jammy, mantic, noble, upstream, xenial): ignored 16, DNE 10, needs-triage 3, released 3, not-affected 1. https://ubuntu.com/security/CVE-2023-42843

Affected software / configurations for CVE-2023-42843

Vendor Product Version Raw CPE
apple safari < 17.1 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipad_os < 16.7.2 cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:*
apple ipad_os >= 17.0, < 17.1 cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:*
apple iphone_os < 16.7.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os >= 17.0, < 17.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos 14.0 cpe:2.3:o:apple:macos:14.0:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*
webkitgtk webkitgtk < 2.44.0 cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
wpewebkit wpe_webkit < 2.44.0 cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*

References for CVE-2023-42843

cvelogic Threat Intelligence