Security readout for executives and security teams
Plain-English summary
This issue can let an unauthenticated remote attacker read files outside the intended Liferay Hypermedia REST APIs resource area. The main business risk is confidentiality loss, not system takeover, based on the CVSS vector and description.
Executive priority
Treat as a high-priority confidentiality issue for internet-facing Liferay systems. Prioritize inventory and vendor-guided remediation, especially where the portal may access sensitive configuration or application files.
Technical view
CVE-2022-28981 is a CWE-22 path traversal in Liferay Portal 7.4.0 through 7.4.2. The Hypermedia REST APIs module improperly handles the `parameter` parameter, allowing access outside `com.liferay.headless.discovery.web/META-INF/resources`. CVSS 3.1 is 7.5: network reachable, low complexity, no privileges, confidentiality high.
Likely exposure
Likely exposure is limited to Liferay Portal 7.4.0 through 7.4.2 deployments where the Hypermedia REST APIs module is present and reachable by remote users.
Exploitation context
The source bundle does not cite active exploitation, and KEV is false. The vulnerability is still important because it is remotely reachable without authentication and can expose sensitive local files if exploitable in a deployment.
Researcher notes
Evidence names the affected module, versions, parameter, CWE, and CVSS vector. The bundle does not provide exploit telemetry, patch version, workaround details, or affected CPEs, so validation should stay tied to vendor guidance.
Mitigation direction
- Check Liferay's advisory for fixed versions or vendor-approved remediation.
- Inventory Liferay Portal instances and identify versions 7.4.0 through 7.4.2.
- Reduce external reachability of affected Hypermedia REST APIs where possible.
- Monitor for suspicious file-read attempts against affected REST API routes.
Validation and detection
- Confirm whether any deployed Liferay Portal version is 7.4.0 through 7.4.2.
- Verify whether the Hypermedia REST APIs module is enabled or reachable.
- Review edge, application, and Liferay logs for unusual traversal-like request patterns.
- Track remediation status against the Liferay advisory, not inferred package names.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-28981 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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:H/I:N/A:N3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
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 Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.