Security readout for executives and security teams
Plain-English summary
A permissions flaw in Liferay's Hypermedia REST APIs can let a remote attacker read a WikiNode object without proper authorization. The known impact is limited confidentiality exposure, not system takeover, data modification, or service disruption based on the supplied CVSS data.
Executive priority
Treat this as a medium-priority information exposure issue. It warrants timely patch validation and internet exposure review, especially for public Liferay sites, but the provided evidence does not indicate active exploitation or broader compromise capability.
Technical view
CVE-2022-42128 affects Liferay Portal 7.4.1 through 7.4.3.4 and Liferay DXP 7.4 GA. The WikiNodeResource.getSiteWikiNodeByExternalReferenceCode API lacks proper permission checks, allowing network access with no privileges or user interaction to obtain a WikiNode object.
Likely exposure
Exposure is most likely on internet-reachable Liferay Portal or DXP deployments running the listed 7.4 versions where the Hypermedia REST APIs module and wiki functionality are accessible.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates low-complexity remote access without authentication, but only low confidentiality impact is documented.
Researcher notes
The affected range and vulnerable API are clear from the description, but the bundle does not provide patch version details, exploit telemetry, or examples of the exposed WikiNode contents. Avoid assuming impact beyond unauthorized object retrieval.
Mitigation direction
- Check the Liferay advisory and LPE-17595 for the official fixed version or patch guidance.
- Inventory Liferay Portal and DXP versions against the affected 7.4 releases.
- Limit public reachability of Hypermedia REST APIs where business requirements allow.
- Review wiki and site content permissions for unintended data exposure.
- Monitor for vendor updates if no applied fix is currently documented internally.
Validation and detection
- Confirm whether any deployment runs Liferay Portal 7.4.1 through 7.4.3.4 or DXP 7.4 GA.
- Verify whether the Hypermedia REST APIs module is enabled and externally reachable.
- Review application logs for requests involving WikiNodeResource or site wiki node external reference codes.
- Test that unauthorized users cannot retrieve WikiNode objects through the affected API.
- Document any exposed WikiNode metadata and determine whether it contains sensitive business context.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-276: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-42128 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/cve-2022-42128CVE reference, mitre
- https://issues.liferay.com/browse/LPE-17595CVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Default Permissions
Incorrect Default Permissions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.