CVE-2021-20493

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-03 · updated 2026-06-17
Weakness: CWE-79

Description

IBM Cognos Analytics 11.1.7 and 11.2.0 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: 197794.

Affected products

IBM Cognos Analytics: from 11.1.0 before 11.1.7; 11.1.7, 11.1.7-fixpack1, 11.1.7-fixpack2, 11.1.7-fixpack3, 11.2.0 — fixed in 11.1.7
OnCommand Insight: all versions

How to fix

Upgrade to a fixed version: IBM Cognos Analytics 11.1.7. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/197794
https://security.netapp.com/advisory/ntap-20211223-0006/
https://www.ibm.com/support/pages/node/6520510
https://exchange.xforce.ibmcloud.com/vulnerabilities/197794
https://security.netapp.com/advisory/ntap-20211223-0006/
https://www.ibm.com/support/pages/node/6520510

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