Safari 18.5 Domain Name Spoofing in Popup Titles
CVE-2025-31266 Published on November 21, 2025
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.
Vulnerability Analysis
CVE-2025-31266 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
User Interface (UI) Misrepresentation of Critical Information
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.
Products Associated with CVE-2025-31266
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Affected Versions
Apple macOS:- Version unspecified and below 15.5 is affected.
- Version unspecified and below 18.5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.