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CVE-2026-28871

MEDIUM CVSS 3.1: 4.3 EPSS 0.03%
Updated Mar 30, 2026
Apple
Parameter Value
CVSS 4.3 (MEDIUM)
Affected Versions 26.0 — 26.4
Fixed In 26.4
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Apple
Public PoC No

A logic issue was addressed with improved checks. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4. Visiting a maliciously crafted website may lead to a cross-site scripting attack.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Apple Safari
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
26.4
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
18.7.7
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
26.0 26.4
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
18.7.7
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
26.0 26.4
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
26.4