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CVE Record

CVE-2021-39024: IBM Guardium Data Encryption (GDE) 4.0.0.0 and 5.0.0.0 is vulnerable to cross-site scripting.

IBM Guardium Data Encryption (GDE) 4.0.0.0 and 5.0.0.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 213862.

MediumCVSS 4.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Guardium Data Encryption 4.0.0.0 and 5.0.0.0 have a Web UI cross-site scripting flaw. A user with high privileges could embed JavaScript that runs in another trusted session, potentially exposing credentials or changing UI behavior.

Executive priority

Treat as a moderate-priority remediation item for affected IBM GDE environments. It is not KEV-listed, but it can affect credentials inside trusted administrative sessions, so address it in the next security maintenance window.

Technical view

CVE-2021-39024 is a network-reachable XSS issue in IBM GDE Web UI. CVSS 3.0 is 4.8 with low attack complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.

Likely exposure

Exposure is limited to IBM Guardium Data Encryption 4.0.0.0 and 5.0.0.0 deployments. Risk is higher where the Web UI is broadly reachable or where many high-privilege users can create content viewed by other trusted users.

Exploitation context

The source bundle does not show CISA KEV listing or cited active exploitation. The CVSS vector includes high exploit-code maturity, but that alone is not evidence of active exploitation in the wild.

Researcher notes

Evidence is limited to the CVE description, CVSS vector, IBM advisory URL, and X-Force entry. The bundle names affected versions but does not provide fixed versions, patch identifiers, or concrete mitigations beyond vendor guidance.

Mitigation direction

  • Identify any IBM GDE 4.0.0.0 or 5.0.0.0 deployments.
  • Review IBM advisory 6584143 for named fixes or upgrade guidance.
  • Restrict Web UI access to trusted administrative networks.
  • Reduce and review high-privilege Web UI accounts.
  • Monitor for suspicious Web UI content or unexpected script behavior.

Validation and detection

  • Confirm installed IBM GDE versions against the affected list.
  • Check whether the Web UI is reachable beyond administrative networks.
  • Review user roles for unnecessary high privileges.
  • Verify IBM advisory remediation status for each deployment.
  • Review recent Web UI changes for unexpected embedded script content.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2021-39024 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:L/AV:N/S:C/I:L/PR:H/C:L/UI:R/A:N/RL:O/RC:C/E:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
4.8CVSS 3.0MediumCVSS:3.0/AC:L/AV:N/S:C/I:L/PR:H/C:L/UI:R/A:N/RL:O/RC:C/E:H1.72.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.8Medium
CVSS 3.0 vector shape for CVE-2021-39024Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/AV:N/S:C/I:L/PR:H/C:L/UI:R/A:N/RL:O/RC:C/E:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMGuardium Data Encryption4.0.0, 5.0.0Listed
Weakness

CWE details

No CWE listed

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