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Ios And Ipados CVE-2026-28861

| EUVDEUVD-2026-15135 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-03-25 apple
Apple XSS Ios And Ipados Visionos
4.3
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SUSE
MEDIUM
qualitative
Red Hat
4.3 HIGH
qualitative

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
26.4,18.7.7
EUVD ID Assigned
Mar 25, 2026 - 01:00 euvd
EUVD-2026-15135
Analysis Generated
Mar 25, 2026 - 01:00 vuln.today
CVE Published
Mar 25, 2026 - 00:32 nvd
MEDIUM 4.3

DescriptionCVE.org

A logic issue was addressed with improved state management. 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, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.

AnalysisAI

A logic error in Apple's script message handler implementation allows malicious websites to access script message handlers intended for other origins, resulting in unauthorized cross-origin information disclosure. This vulnerability affects Safari 26.4 and earlier, iOS/iPadOS 18.7.7 and earlier, macOS Tahoe 26.4 and earlier, and visionOS 26.4 and earlier. An attacker can craft a malicious website that exploits improper state management in the message handler routing mechanism to intercept sensitive data intended for legitimate web applications, potentially exposing authentication tokens, user data, or other confidential information passed through script messaging interfaces.

Technical ContextAI

The vulnerability resides in Apple's WebKit engine, specifically in the script message handler subsystem that facilitates communication between web content and native application code. Script message handlers (WKScriptMessageHandler) are a documented API for bridging JavaScript in web pages with native Swift or Objective-C code. The root cause is classified as a logic error in state management—meaning the handler routing mechanism fails to properly maintain or validate the origin context when routing incoming messages. Rather than a traditional memory safety issue, this is a design flaw where the handler state does not correctly enforce same-origin policy constraints, allowing a malicious origin to read messages destined for a different origin. The affected CPE strings (cpe:2.3:a:apple:safari, cpe:2.3:a:apple:ios_and_ipados, cpe:2.3:a:apple:macos, cpe:2.3:a:apple:visionos) indicate the vulnerability spans Safari browser and all iOS, iPadOS, macOS, and visionOS platforms that share the common WebKit rendering engine.

RemediationAI

Immediately upgrade to Safari 26.4 or later, iOS/iPadOS 18.7.7 or later (or iOS/iPadOS 26.4 or later on supported devices), macOS Tahoe 26.4 or later, or visionOS 26.4 or later. These patches address the logic flaw in script message handler state management by improving validation of origin context before routing messages. Users should enable automatic updates in Settings > General > Software Update (iOS/iPadOS) or System Settings > General > Software Update (macOS) to ensure timely patching. Until patches can be applied, restrict web browsing to trusted websites only and disable JavaScript where feasible for non-essential browsing. Organizations managing Safari deployments should use Mobile Device Management (MDM) or enterprise deployment tools to enforce immediate patching across all endpoints. Refer to Apple's official security advisories at https://support.apple.com/en-us/126792 (Safari), https://support.apple.com/en-us/126793 (iOS), https://support.apple.com/en-us/126794 (iPadOS), https://support.apple.com/en-us/126799 (macOS), and https://support.apple.com/en-us/126800 (visionOS) for version-specific guidance.

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Same weakness CWE-79 – Cross-site Scripting (XSS)

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Basesystem 15 SP7 Fixed
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Development Tools 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP6-LTSS Fixed

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CVE-2026-28861 vulnerability details – vuln.today
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