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Digital Experience PlatformApplication · Liferay

CVE-2021-29044

MEDIUM · 6.1 CVSS v3.1 Published 2021-05-17
Fix available
A fix is available. Upgrade to after 7.3.5 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Cross-site scripting (XSS) vulnerability in the Site module's membership request administration pages in Liferay Portal 7.0.0 through 7.3.5, and Liferay DXP 7.0 before fix pack 97, 7.1 before fix pack 21, 7.2 before fix pack 10 and 7.3 before fix pack 1 allows remote attackers to inject arbitrary web script or HTML via the _com_liferay_site_my_sites_web_portlet_MySitesPortlet_comments parameter.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A reflected cross-site scripting (XSS) vulnerability in Liferay Portal and DXP allows remote attackers to inject arbitrary web script or HTML via the _com_lifera_site_my_sites_web_portlet_MySitesPortlet_comments parameter in the Site module's membership request administration pages.

MitigationApply the appropriate fix packs (FP97 for 7.0, FP21 for 7.1, FP10 for 7.2, FP1 for 7.3) or upgrade to a version beyond 7.3.5 to remediate this vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Digital Experience PlatformApplication
Affected:= 7.0= 7.1= 7.2
DxpApplication
Affected:= 7.3
Liferay PortalApplication
Affected:>= 7.0.0, <= 7.3.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Lifer Portal or DXP version
    Access the Control Panel (Control Panel > Configuration > Instance Settings > General) to view the product version, or inspect the portal-impl.properties file for the 'release.info.version' property in the Lifer installation directory
    Affected if Running version 7.0.x, 7.1.x, 7.2.x, or any version from 7.0.0 through 7.3.5 inclusive
  2. Confirm access to Site membership request functionality
    Navigate to the Site Administration panel and verify access to the Memberships or Members section under People in the Lifer DXP/Portal interface
    Affected if The Site membership request administration feature is enabled and accessible to users

A system is affected if it runs Lifer Portal/DXP version 7.0.x, 7.1.x, 7.2.x, or any version between 7.0.0 and 7.3.5 and has the Site membership request feature accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to a release after 7.3.5
Interim mitigation

Apply the appropriate fix packs (FP97 for 7.0, FP21 for 7.1, FP10 for 7.2, FP1 for 7.3) or upgrade to a version beyond 7.3.5 to remediate this vulnerability.

Fix this in Digital Experience Platform Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-29044 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data