Security readout for executives and security teams
Plain-English summary
CVE-2021-33336 is a stored cross-site scripting issue in Liferay's Journal module add article menu. An attacker could cause malicious script or HTML to be saved through a JournalPortlet name parameter, creating risk to users who later view the affected content or interface.
Executive priority
Treat this as a moderate priority, higher if the affected Liferay portal is internet-facing or accepts content from less-trusted users. It is not shown as actively exploited in the provided evidence.
Technical view
The CVE describes stored XSS in Liferay Portal 7.3.0 through 7.3.3, Liferay DXP 7.1 fix pack 18, and DXP 7.2 fix packs 5 through 7. The affected input is _com_liferay_journal_web_portlet_JournalPortlet_name in the Journal module add article menu.
Likely exposure
Exposure is likely limited to organizations running the listed Liferay Portal or DXP versions with the Journal module reachable. Risk rises where untrusted or broadly provisioned users can access article creation or related Journal workflows.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The issue is still operationally relevant because stored XSS can affect later viewers and may impact trusted portal users, depending on privileges and workflow exposure.
Researcher notes
Evidence is sparse: the CVE names versions, module, vulnerability class, and parameter, but no CVSS, CWE, exploit status, or detailed fixed-version data is included in the supplied bundle.
Mitigation direction
- Check Liferay's advisory and LPE-17078 for vendor-confirmed fixed versions.
- Upgrade or apply the relevant Liferay vendor fix when confirmed.
- Restrict Journal module access to trusted users until remediation is complete.
- Review portal content workflows for unexpected stored script or HTML.
Validation and detection
- Inventory Liferay Portal and DXP versions, including fix pack levels.
- Confirm whether affected Journal module workflows are enabled and reachable.
- Verify remediation against Liferay's advisory or issue tracker.
- Perform authorized, non-executing input-sanitization checks in staging.
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
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CVE-2021-33336 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/cve-2021-33336-stored-xss-with-structure-nameCVE reference · x_refsource_CONFIRM
- https://issues.liferay.com/browse/LPE-17078CVE reference · x_refsource_CONFIRM
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.