CVE-2021-29820Network attack vector

Credential disclosure via arbitrary Web UI JavaScript

Published Sep 20, 2021 · Updated Sep 16, 2024

Cross-site scripting in IBM Tivoli Netcool/OMNIbus WebGUI 8.1.0 allows remote authenticated users to disclose session credentials. IBM states that the Web UI accepts arbitrary JavaScript but does not identify the affected request, field, or missing output-encoding operation. Exploitation requires authenticated access and user interaction within a trusted session, where the injected script can alter displayed functionality and expose credentials.

CVSS severity5.4
Medium
EPSS probability0.54%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in IBM Tivoli Netcool/OMNIbus WebGUI 8.1.0 allows remote authenticated users to disclose session credentials. IBM states that the Web UI accepts arbitrary JavaScript but does not identify the affected request, field, or missing output-encoding operation. Exploitation requires authenticated access and user interaction within a trusted session, where the injected script can alter displayed functionality and expose credentials.

The record

CVE
CVE-2021-29820
Published
Sep 20, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
Tivoli Netcool/OMNIbus
Classifications
T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Tivoli Netcool/OMNIbusversion=8.1.0

Published CVSS scores

5.4IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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