CVE-2022-32933

What it actually does

The vulnerability allows a remote website to disclose and track the user's browsing history specifically when Safari is operating in private browsing mode due to incomplete isolation of private session data.

Why it matters to the business

Users relying on private browsing for sensitive research or activity face unexpected privacy loss, potentially exposing personal or corporate interests to third parties and undermining trust in the browser's privacy protections.

How an attack unfolds

An attacker hosts a malicious website that leverages the flawed code path to query or infer previously visited sites during a private browsing session; the flaw was addressed by removing the vulnerable code in the Safari implementation.

How to fix it

Upgrade affected macOS Monterey systems to version 12.5 or later where the vulnerable code has been removed; for older branches apply the corresponding Safari updates that eliminate the disclosure vector.

How to confirm the fix worked

Verify the installed macOS build is 12.5 or newer via System Information or software update logs; confirm Safari private browsing sessions no longer leak history to external sites through targeted testing.

Typical attack path

1. User opens Safari in private browsing mode and visits sensitive sites
2. User is directed to or visits an attacker-controlled website
3. Malicious site executes tracking code that exploits the information disclosure
4. Attacker receives data revealing the user's prior private browsing activity

How to detect it

Examine Safari process logs, private browsing session artifacts, and network traffic for unexpected outbound requests from macOS endpoints that correlate with private mode usage; review endpoint telemetry for signs of history disclosure to untrusted domains.

What your security team should do

• Prioritize deployment of macOS Monterey 12.5 across all managed endpoints using private browsing
• Review and enforce browser update policies to prevent use of versions prior to the fix
• Monitor Apple security advisories for any related Safari updates on other macOS releases