CVE-2025-43229

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-30 · updated 2026-06-17
Weakness: CWE-79

Description

This issue was addressed through improved state management. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. Processing maliciously crafted web content may lead to universal cross site scripting.

Affected products

Apple macOS: before 15.6 — fixed in 15.6
Apple Safari: before 18.6 — fixed in 18.6

How to fix

Upgrade to a fixed version: Apple macOS 15.6; Apple Safari 18.6. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/124149
https://support.apple.com/en-us/124152
http://seclists.org/fulldisclosure/2025/Aug/0
http://seclists.org/fulldisclosure/2025/Jul/32

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