CVE-2022-28981Network attack vector

Unauthenticated file disclosure via parameter path traversal

Published Sep 22, 2022 · Updated Jul 9, 2026

Path traversal in Liferay Portal 7.4.0 through 7.4.2 allows remote attackers to read files outside the REST module's resource directory. The Hypermedia REST APIs module accepts the parameter value as a resource path but fails to keep the resolved pathname beneath com.liferay.headless.discovery.web/META-INF/resources. Unauthenticated network access is sufficient, and the documented consequence is limited to disclosure of files reachable through traversal.

CVSS severity7.5
High
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Liferay Portal 7.4.0 through 7.4.2 allows remote attackers to read files outside the REST module's resource directory. The Hypermedia REST APIs module accepts the parameter value as a resource path but fails to keep the resolved pathname beneath com.liferay.headless.discovery.web/META-INF/resources. Unauthenticated network access is sufficient, and the documented consequence is limited to disclosure of files reachable through traversal.

The record

CVE
CVE-2022-28981
Published
Sep 22, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 22, 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 privilegesunauthenticated

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:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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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