CVE-2023-46270Public exploit

Gatekeeper bypass via missing root quarantine metadata

Published Apr 29, 2024 · Updated Mar 28, 2025

Improper quarantine handling in MacPaw The Unarchiver before 4.3.6 allows attackers to bypass Gatekeeper via a crafted archive. XADUnarchiver and XADSimpleUnarchiver create an archive's root directory without invoking the delegate path that copies quarantine metadata to the new directory. After a user downloads, extracts, and opens the archive on macOS, an unsigned application bundle can run without Gatekeeper's normal warning.

CVSS severity3.3
Low
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper quarantine handling in MacPaw The Unarchiver before 4.3.6 allows attackers to bypass Gatekeeper via a crafted archive. XADUnarchiver and XADSimpleUnarchiver create an archive's root directory without invoking the delegate path that copies quarantine metadata to the new directory. After a user downloads, extracts, and opens the archive on macOS, an unsigned application bundle can run without Gatekeeper's normal warning.

The record

CVE
CVE-2023-46270
Published
Apr 29, 2024
Updated
Mar 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276, T1204.002, T1553.001
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 28, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1204.002Malicious File
T1553.001Gatekeeper Bypass

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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