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CVE Record

CVE-2020-4380: IBM Workload Scheduler 9.3.0.4 is vulnerable to cross-site scripting.

IBM Workload Scheduler 9.3.0.4 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: 179160.

MediumCVSS 5.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Workload Scheduler 9.3.0.4 has a cross-site scripting issue in its Web UI. A user could place JavaScript into the interface and change what another trusted session sees or does, potentially exposing credentials. The rating is medium, but the risk matters where the scheduler console is broadly reachable or used by privileged operators.

Executive priority

Treat this as a moderate-priority remediation for affected scheduler consoles, especially where administrators use the Web UI. It is not described as remotely unauthenticated or actively exploited in the provided sources, but credential exposure inside a trusted session can create meaningful operational risk.

Technical view

The CVSS 3.0 score is 5.4 with network attack vector, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality/integrity impact. The source describes arbitrary JavaScript embedding in the Web UI, potentially leading to credential disclosure within a trusted session. No CWE is listed in the provided bundle.

Likely exposure

Exposure appears limited to IBM Workload Scheduler 9.3.0.4 deployments with the Web UI enabled. Risk is higher when many users can authenticate to the console, when privileged administrators use the same interface, or when the UI is reachable beyond tightly controlled management networks.

Exploitation context

The bundle does not show CISA KEV listing or confirmed active exploitation. The vector indicates low privileges and user interaction are required. IBM X-Force ID 179160 is cited, and the CVSS temporal vector indicates high exploit maturity and official remediation, but exact fix details are not included here.

Researcher notes

Evidence is source-limited. The provided record identifies IBM Workload Scheduler 9.3.0.4 only. Do not generalize to other versions without IBM confirmation. The CVSS vector includes PR:L and UI:R, aligning with authenticated content injection that affects another trusted session.

Mitigation direction

  • Check IBM support bulletin 6223030 for the official remediation path.
  • Upgrade or patch affected IBM Workload Scheduler 9.3.0.4 systems per IBM guidance.
  • Limit Web UI access to trusted management networks and required users.
  • Review user permissions for accounts allowed to create or modify Web UI content.
  • Monitor vendor advisories for any updated remediation or exploitation information.

Validation and detection

  • Inventory IBM Workload Scheduler versions and identify any 9.3.0.4 instances.
  • Confirm whether the Web UI is enabled and reachable from untrusted networks.
  • Verify installed fix levels against IBM support bulletin 6223030.
  • Review Web UI logs for suspicious content changes or script-like input.
  • Use authorized, benign application-security testing to confirm remediation without weaponized payloads.
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-2020-4380 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/A:N/S:C/I:L/AV:N/UI:R/AC:L/C:L/E:H/RC:C/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/A:N/S:C/I:L/AV:N/UI:R/AC:L/C:L/E:H/RC:C/RL:O2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2020-4380Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:L/A:N/S:C/I:L/AV:N/UI:R/AC:L/C:L/E:H/RC:C/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
IBMWorkload Scheduler9.3.0.4Listed
Weakness

CWE details

No CWE listed

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