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Mallory
Medium

Cross-origin data exfiltration in Apple iOS and iPadOS

IdentifiersCVE-2025-43452CWE-346

CVE-2025-43452 is a cross-origin data exfiltration vulnerability in Apple iOS and iPadOS. According to the provided advisory content, a malicious website may exfiltrate data cross-origin. Apple states the issue was addressed with improved checks. The available information does not identify the specific vulnerable component or function, but the flaw is characterized as a failure in origin/isolation enforcement that allowed web content from one origin to access data belonging to another origin.

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For your environment

Are you exposed to this one?

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow a malicious website to obtain data from a different origin than the one the user intended to interact with, violating browser security boundaries and exposing sensitive web content. Depending on the affected context, this could result in unauthorized disclosure of session-related or page-derived data accessible through the vulnerable cross-origin handling path.

Mitigation

If you can’t patch tonight, do this now.

Until patching is completed, reduce exposure by limiting use of untrusted or attacker-controlled websites on affected devices. Enterprise defenders can also prioritize rapid OS update deployment and restrict browsing to trusted destinations where feasible. No more specific mitigation is available from the provided content.

Remediation

Patch, then assume compromise.

Upgrade affected devices to iOS 26.1 or iPadOS 26.1, where Apple indicates the issue is fixed through improved checks.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AppleIpadosoperating_system
AppleIphone Osoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.