CVE-2022-32933Public exploitNetwork attack vector

Private browsing history disclosure via favicon cache

Published Jun 10, 2024 · Updated Mar 18, 2025

Information disclosure in WebKit in Apple macOS before 12.5 allows remote attackers to infer Safari private-browsing history via a website. WebKit serves favicons cached during normal browsing inside private sessions, and the Performance API reveals whether each icon caused a request. A user must visit the attacker's site in private mode after visiting probed sites normally; the site learns matching history, not page contents.

CVSS severity5.3
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in WebKit in Apple macOS before 12.5 allows remote attackers to infer Safari private-browsing history via a website. WebKit serves favicons cached during normal browsing inside private sessions, and the Performance API reveals whether each icon caused a request. A user must visit the attacker's site in private mode after visiting probed sites normally; the site learns matching history, not page contents.

The record

CVE
CVE-2022-32933
Published
Jun 10, 2024
Updated
Mar 18, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <12.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <12.5

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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