BaseFortify

Publication date: 2025-11-21

Last updated on: 2026-04-02

Assigner: Apple Inc.

Description

A spoofing issue was addressed with improved truncation when displaying the fully qualified domain name. This issue is fixed in Safari 18.5, macOS Sequoia 15.5. A website may be able to spoof the domain name in the title of a pop-up window.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2025-11-21

Last Modified

2026-04-02

Generated

2026-07-06

AI Q&A

2025-11-22

EPSS Evaluated

2026-07-05

NVD

CVE-2025-31266

Affected Vendors & Products

Vendor	Product	Version / Range
apple	safari	to 18.5 (exc)
apple	macos	to 15.5 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-451	The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

Attack-Flow Graph

Executive Summary

This vulnerability is a spoofing issue where a website may be able to spoof the domain name in the title of a pop-up window by exploiting improper truncation when displaying the fully qualified domain name. It was addressed by improving the truncation method.

Impact Analysis

This vulnerability can impact you by allowing a malicious website to spoof the domain name in a pop-up window's title, potentially misleading you into trusting a fraudulent site or action, which could lead to phishing or other social engineering attacks.

Mitigation Strategies

Update Safari to version 18.5 and macOS Sequoia to version 15.5 to apply the fix that addresses the spoofing issue.

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