What is CVE-2019-4555?

CVE-2019-4555 is a medium-severity vulnerability in IBM Cognos Analytics, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-12-20.

How severe is CVE-2019-4555?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in IBM Cognos Analytics

CVE-2019-4555

IBM Cognos Analytics 11.0 and 11.0 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: 166204.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

IBM Cognos Analytics — versions 11.0, 11.1
IBM Cognos Analytics — versions 11.0.13

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.ibm.com/support/pages/node/1138588 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/166204 (VDB Entry, vdb-entry, Vendor Advisory)
security.netapp.com/advisory/ntap-20200103-0003/ (Third Party Advisory)

Frequently asked questions

What is CVE-2019-4555?: CVE-2019-4555 is a medium-severity vulnerability in IBM Cognos Analytics, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-12-20.
How severe is CVE-2019-4555?: Medium severity. CVSS v3 base score is 5.4 out of 10.