Apple Safari XSS from Logic Issue (fixed 26.4)
CVE-2026-28871 Published on March 25, 2026
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.
Vulnerability Analysis
CVE-2026-28871 can be exploited 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 a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-28871 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-28871
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Affected Versions
Apple Safari:- Before 26.4 is affected.
- Before 18.7.7 is affected.
- Before 26.4 is affected.
- Before 26.4 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.