CVE-2022-42123Network attack vector

Arbitrary file overwrite via Sidecar archive traversal

Published Nov 15, 2022 · Updated Jul 9, 2026

Zip Slip in Liferay Portal and DXP allows attackers to create or overwrite server files through a malicious Sidecar plugin. During plugin installation, the Elasticsearch Connector accepts archive entry paths that escape the intended extraction directory. The attack requires administrative plugin-installation access; affected releases are Portal 7.3.3 through 7.4.3.18 and DXP 7.3 before update 6 and 7.4 before update 19.

CVSS severity5.8
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Zip Slip in Liferay Portal and DXP allows attackers to create or overwrite server files through a malicious Sidecar plugin. During plugin installation, the Elasticsearch Connector accepts archive entry paths that escape the intended extraction directory. The attack requires administrative plugin-installation access; affected releases are Portal 7.3.3 through 7.4.3.18 and DXP 7.3 before update 6 and 7.4 before update 19.

The record

CVE
CVE-2022-42123
Published
Nov 15, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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 vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.8LiferayCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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