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CVE Record

CVE-2020-4920: IBM Jazz Team Server products are vulnerable to stored cross-site scripting.

IBM Jazz Team Server products are vulnerable to stored 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: 191396.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-4920 is a stored cross-site scripting issue in IBM Jazz Team Server-based products. An authenticated user could place JavaScript into the web interface, changing what trusted users see or potentially exposing credentials inside an active session. Business impact is moderate, mainly affecting environments that rely on these IBM engineering lifecycle tools.

Executive priority

Treat as a moderate-priority remediation item for IBM engineering lifecycle environments. It is not KEV-listed, but credential exposure inside trusted sessions can create meaningful operational risk if many users share the platform.

Technical view

IBM describes stored XSS in multiple Rational and Engineering Lifecycle products. The CVSS 3.0 score is 6.4 with network attack vector, low complexity, low privileges required, changed scope, and low confidentiality and integrity impact. The provided sources do not include a CWE or fixed-version details.

Likely exposure

Exposure is likely limited to organizations running the listed IBM Rational or Engineering Lifecycle versions, especially Jazz Team Server deployments reachable by authenticated users. Internet exposure is not stated in the sources.

Exploitation context

The record is not listed as CISA KEV, and the provided bundle does not cite active exploitation. IBM’s vector includes high exploit maturity, but that is not the same as confirmed real-world exploitation.

Researcher notes

Focus validation on affected product/version mapping and stored-content injection surfaces in Jazz Team Server-backed web UI areas. Do not assume public exploit activity from the provided evidence. Fixed releases are not included in the supplied bundle.

Mitigation direction

  • Check IBM advisory 6441803 for fixed maintenance levels or interim fixes.
  • Prioritize affected Jazz Team Server deployments with broad user access.
  • Restrict access to trusted authenticated users until vendor guidance is applied.
  • Review logs and stored content for suspicious script-like entries.

Validation and detection

  • Inventory IBM Rational and Engineering Lifecycle product versions against the affected list.
  • Confirm whether Jazz Team Server components are present and reachable.
  • Verify vendor fixes or mitigations from IBM advisory 6441803.
  • Assess whether untrusted users can create stored web UI 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-2020-4920 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.4 (3.0)
Known Exploited
No
Published

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

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
6.4CVSS 3.0MediumCVSS:3.0/A:N/C:L/I:L/PR:L/S:C/AC:L/AV:N/UI:N/RL:O/E:H/RC:C3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.4Medium
CVSS 3.0 vector shape for CVE-2020-4920Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMRational Engineering Lifecycle Manager6.0.2, 6.0.6, 6.0.6.1, 7.0, 7.0.1Listed
IBMRational Quality Manager6.0.2, 6.0.6, 6.0.6.1Listed
IBMRational Team Concert6.0.2, 6.0.6, 6.0.6.1Listed
IBMRational Collaborative Lifecycle Management6.0.2, 6.0.6, 6.0.6.1Listed
IBMRational DOORS Next Generation6.0.2, 6.0.6, 6.0.6.1, 7.0, 7.0.1, 7.0.2Listed
IBMEngineering Test Management7.0.0, 7.0.1, 7.0.2Listed
IBMEngineering Lifecycle Optimization7.0, 7.0.1, 7.0.2Listed
IBMEngineering Workflow Management7.0, 7.0.1, 7.0.2Listed
IBMRational Rhapsody Model Manager6.0.6, 6.0.6.1, 7.0, 7.0.1, 6.0.2Listed
Weakness

CWE details

No CWE listed

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