Security readout for executives and security teams
Plain-English summary
This is an XSS issue in Liferay’s Site module membership request administration pages. An attacker could place script or HTML into a comments parameter, creating risk when the vulnerable administration page processes that input. The sources do not provide a CVSS score or evidence of active exploitation.
Executive priority
Prioritize remediation for externally reachable Liferay systems or environments where administrators process membership requests. The urgency is meaningful but not proven emergency-level from the supplied evidence.
Technical view
CVE-2021-29044 affects Liferay Portal 7.0.0 through 7.3.5 and specified Liferay DXP fix-pack levels. The vulnerable input is the _com_liferay_site_my_sites_web_portlet_MySitesPortlet_comments parameter in Site module membership request administration pages, allowing remote injection of arbitrary web script or HTML.
Likely exposure
Exposure is most likely where affected Liferay Portal or DXP versions are deployed and the Site module membership request administration workflow is used. Internet-facing portals with active membership requests deserve priority review.
Exploitation context
The provided sources describe remote XSS capability but do not cite public exploitation, weaponized details, or CISA KEV listing. Treat exploitation status as unconfirmed based on this bundle.
Researcher notes
The record lacks CVSS, CWE, and detailed exploit prerequisites. Analysis should stay scoped to the named parameter, Site module workflow, affected Liferay versions, and Liferay’s fixed ranges.
Mitigation direction
- Apply Liferay vendor fixes or upgrade beyond the affected Portal and DXP ranges.
- For DXP, confirm fix packs meet or exceed the fixed levels named by Liferay.
- Restrict administrative access to trusted users and networks where operationally possible.
- Review vendor guidance for any additional product-specific remediation instructions.
Validation and detection
- Inventory Liferay Portal and DXP versions, including installed fix-pack levels.
- Check whether Site module membership request administration pages are enabled or used.
- Review recent membership request comments for unexpected HTML or script-like content.
- Confirm administrative pages encode or neutralize submitted comments after patching.
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-2021-29044 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
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Vulnerability timeline
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- CVE reservedCVE Program
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- CVE publishedCVE Program
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- CVE updatedCVE Program
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ADP provider summaries
Source materials
Products and packages named in the record
CWE details
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