Security readout for executives and security teams
Plain-English summary
This CVE is a cross-site scripting issue in Liferay’s Asset module category selector. A remote attacker could inject script or HTML through a category title parameter, potentially affecting users who view or manage that content. The source bundle does not provide CVSS scoring or evidence of active exploitation.
Executive priority
Treat this as a targeted remediation item for affected Liferay deployments. It is not KEV-listed in the provided data, but XSS in administrative content workflows can create account and content integrity risk.
Technical view
CVE-2021-29046 affects Liferay Portal 7.3.5 and Liferay DXP 7.3 before fix pack 1. The vulnerable input is the AssetCategoriesAdminPortlet title parameter in the category selector field, allowing injected web script or HTML. Authentication requirements, privileges, and impact scope are not defined in the provided sources.
Likely exposure
Exposure is likely limited to organizations running Liferay Portal 7.3.5 or Liferay DXP 7.3 before fix pack 1, especially where Asset category administration is accessible to users or remotely reachable.
Exploitation context
The provided sources describe remote script or HTML injection but do not include exploit maturity, public exploit confirmation, or CISA KEV listing. Active exploitation is therefore not evidenced here.
Researcher notes
Key unknowns are authentication requirements, stored versus reflected behavior details, affected configuration breadth, and fixed version details for Portal 7.3.5. Validation should stay focused on the named parameter and affected Liferay versions from the sources.
Mitigation direction
- Check Liferay’s advisory for affected builds and supported remediation guidance.
- For Liferay DXP 7.3, plan upgrade to fix pack 1 or a vendor-supported successor.
- Restrict access to Asset category administration until remediation is complete.
- Review custom category workflows for untrusted input exposure.
- Monitor Liferay security notices for any updated fixes or mitigations.
Validation and detection
- Inventory Liferay Portal and DXP versions across internet-facing and internal systems.
- Confirm whether any systems run Portal 7.3.5 or DXP 7.3 before fix pack 1.
- Identify users and roles with access to Asset category management.
- Review logs for unusual category title changes or unexpected script-like content.
- Verify remediation status against Liferay’s advisory, not version naming alone.
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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CVE-2021-29046 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.
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
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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.