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CVE Record

CVE-2020-4358: IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 is vulnerable to cross-site scripting.

IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 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: 178762.

MediumCVSS 5.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-4358 is a cross-site scripting flaw in IBM Spectrum Scale Web UI. A logged-in user could place JavaScript into the interface, potentially changing page behavior and exposing credentials inside a trusted session. Business risk is moderate, mainly for environments where many users can access the Web UI.

Executive priority

Treat as a moderate operational risk. It is not listed as known exploited, but it can affect administrative trust and credentials. Remediate during normal vulnerability management cycles, faster for exposed or broadly accessible Web UI deployments.

Technical view

IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 is affected. CVSS 3.0 score is 5.4 with network access, low privileges, required user interaction, changed scope, low confidentiality impact, low integrity impact, and no availability impact.

Likely exposure

Exposure is limited to IBM Spectrum Scale deployments using the affected Web UI versions. Risk is higher where the Web UI is reachable beyond tightly controlled administrative networks or where low-privileged users have interface access.

Exploitation context

The bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation requires low privileges and user interaction, and IBM’s assessment marked exploit code maturity as high.

Researcher notes

The available evidence identifies stored or reflected Web UI JavaScript injection but does not provide safe reproduction details. Avoid assuming affected components beyond IBM Spectrum Scale 5.0.0.0 through 5.0.4.4 without vendor confirmation.

Mitigation direction

  • Identify IBM Spectrum Scale Web UI versions in use.
  • Prioritize systems running 5.0.0.0 through 5.0.4.4.
  • Apply IBM’s vendor guidance or fixed level from the advisory.
  • Restrict Web UI access to trusted administrative networks.
  • Review Web UI roles and remove unnecessary low-privileged access.

Validation and detection

  • Confirm each deployment’s IBM Spectrum Scale version.
  • Verify affected Web UI instances received IBM’s recommended remediation.
  • Check whether the Web UI is exposed outside admin networks.
  • Review Web UI logs for suspicious authenticated activity.
  • Confirm admin users rotate credentials if compromise is suspected.
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.

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CVE-2020-4358 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.0)
Known Exploited
No
Published

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

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
5.4CVSS 3.0MediumCVSS:3.0/PR:L/I:L/A:N/C:L/AV:N/AC:L/UI:R/S:C/RC:C/E:H/RL:O2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2020-4358Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMSpectrum Scale5.0.0, 5.0.4.4Listed
Weakness

CWE details

No CWE listed

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