CVE-2021-39047Network attack vector

Credential disclosure via stored Web UI script

Published Jun 24, 2022 · Updated Sep 16, 2024

Cross-site scripting in IBM Cognos Analytics 11.1.7, 11.2.0, and 11.2.1 lets remote attackers run JavaScript in a trusted Web UI session. The Web UI accepts user-supplied content without adequate validation and renders it as executable script, enabling alteration of displayed functionality and possible credential disclosure when a trusted user views the content. Exploitation requires network access and victim interaction with the affected page; impact is bounded to browser-session confidentiality and integrity.

CVSS severity6.1
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in IBM Cognos Analytics 11.1.7, 11.2.0, and 11.2.1 lets remote attackers run JavaScript in a trusted Web UI session. The Web UI accepts user-supplied content without adequate validation and renders it as executable script, enabling alteration of displayed functionality and possible credential disclosure when a trusted user views the content. Exploitation requires network access and victim interaction with the affected page; impact is bounded to browser-session confidentiality and integrity.

The record

CVE
CVE-2021-39047
Published
Jun 24, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
Cognos Analytics
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2022CVE 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=11.1.7
  2. Affected versionversion=11.2.0
  3. Affected versionversion=11.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Cognos Analyticsversion=11.1.7; version=11.2.0; version=11.2.1

Published CVSS scores

6.1IBM X-ForceCVSS:3.0/AV:N/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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