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CVE Record

CVE-2021-29821: IBM Jazz for Service Management and IBM Tivoli Netcool/OMNIbus_GUI 8.1.0 is vulnerable to cross-site script...

IBM Jazz for Service Management and IBM Tivoli Netcool/OMNIbus_GUI 8.1.0 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: 204348.

MediumCVSS 5.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-29821 is a medium-severity cross-site scripting issue in IBM Jazz for Service Management and IBM Tivoli Netcool/OMNIbus_GUI 8.1.0. An authenticated user could place JavaScript into the Web UI, potentially affecting trusted sessions and exposing credentials. Business urgency depends on whether this management interface is deployed and reachable.

Executive priority

Treat as a moderate priority. The issue is not listed as KEV, but it affects management software and may expose credentials inside trusted sessions, so internet-facing or broadly accessible deployments should be reviewed promptly.

Technical view

The vulnerability is network-reachable XSS with low attack complexity, low privileges required, and user interaction required. IBM describes arbitrary JavaScript embedding in the Web UI, with potential confidentiality and integrity impact. The supplied CVSS 3.0 score is 5.4, with scope changed and no availability impact.

Likely exposure

Exposure is most likely where IBM Tivoli Netcool/OMNIbus_GUI 8.1.0 or Jazz for Service Management Web UI is deployed, especially if reachable by many internal users or administrators.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS vector records exploit maturity as high, but that is not enough to claim active attacks.

Researcher notes

Evidence is limited to CVE, IBM advisory, and X-Force metadata. The bundle names affected IBM products and version 8.1.0, but does not include detailed vulnerable parameters, payloads, or complete remediation text.

Mitigation direction

  • Review IBM advisory 6490747 for the official fix or interim guidance.
  • Prioritize systems exposing the affected Web UI to broad user groups.
  • Restrict access to trusted administrative networks where operationally possible.
  • Reduce unnecessary low-privilege accounts with Web UI access.
  • Monitor vendor guidance for any updated remediation notes.

Validation and detection

  • Inventory IBM Jazz for Service Management and Netcool/OMNIbus_GUI deployments.
  • Confirm whether version 8.1.0 is present in production or staging.
  • Check whether the Web UI is reachable from user workstations or external networks.
  • Review access logs for unusual Web UI activity or unexpected script-like content.
  • Verify remediation status against IBM support and X-Force records.
Prepared
Confidence
medium
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-2021-29821 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/S:C/UI:R/A:N/AC:L/AV:N/I:L/C:L/PR: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/S:C/UI:R/A:N/AC:L/AV:N/I:L/C:L/PR: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-2021-29821Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/S:C/UI:R/A:N/AC:L/AV:N/I:L/C:L/PR: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
IBMTivoli Netcool/OMNIbus8.1.0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.