Security readout for executives and security teams
Plain-English summary
CVE-2022-42126 is an access-control flaw in Liferay’s Asset Libraries module. A logged-in remote user may be able to view asset libraries they should not have permission to see. The impact is limited to confidentiality, but it can expose business content or shared assets inside affected Liferay deployments.
Executive priority
Treat as a moderate-priority remediation for affected Liferay systems, especially those with many external or low-trust authenticated users. Prioritize upgrades during the next planned maintenance window unless sensitive asset libraries are exposed to broad user populations.
Technical view
The vulnerability is improper permission checking for asset libraries in Liferay Portal 7.3.5 through 7.4.3.28, Liferay DXP 7.3 before update 8, and DXP 7.4 before update 29. CVSS 3.1 is 4.3: network-accessible, low complexity, authenticated, no user interaction, low confidentiality impact.
Likely exposure
Exposure is most relevant for internet-facing or broadly accessible Liferay instances where untrusted or low-privileged users can authenticate and access the UI. Systems not using affected Liferay versions, or without such authenticated users, have lower practical exposure.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not listed as CISA KEV in the supplied bundle. Exploitation requires authentication and appears limited to viewing asset libraries through the UI, not modifying data or causing outage.
Researcher notes
This is CWE-284 improper access control with authenticated UI-based information exposure. The public description does not provide exploit details, indicators of compromise, or alternate mitigations. Validation should focus on version mapping and permission-boundary testing without attempting weaponized exploitation.
Mitigation direction
- Identify Liferay Portal and DXP versions in use.
- Upgrade affected Liferay Portal deployments to a version outside the affected range.
- Upgrade DXP 7.3 to update 8 or later per Liferay guidance.
- Upgrade DXP 7.4 to update 29 or later per Liferay guidance.
- Review Liferay’s advisory and LPE-17593 for environment-specific guidance.
Validation and detection
- Confirm whether Asset Libraries is present and enabled.
- Inventory all Liferay Portal and DXP instances and versions.
- Check whether low-privileged authenticated users can access unintended asset libraries.
- Review application logs for unusual authenticated UI access to asset libraries.
- Verify remediation by retesting permissions after upgrade or vendor-recommended changes.
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-42126 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:L/I:N/A:N2.81.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/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-2022-42126CVE reference, mitre
- https://issues.liferay.com/browse/LPE-17593CVE 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.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.