CVE-2020-4303: IBM WebSphere Application Server Liberty

IBM WebSphere Application Server - Liberty 17.0.0.3 through 20.0.0.3 is vulnerable to cross-site scripting.

CVSS 6.1 MediumEPSS 0.0082 · 57th percentile

Published by the CVE Program (CNA: ibm) at 2 Apr 2020, 14:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
IBM	WebSphere Application Server Liberty	affected 17.0.0.3 affected 20.0.0.3

Identifiers

CVE-2020-4303

CNA

ibm

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.1	Medium	3.0	CVSS:3.0/AC:L/AV:N/UI:R/PR:N/I:L/S:C/A:N/C:L/RL:O/RC:C/E:H	CNA (ibm)

CISA KEV Not listed.
EPSS 0.0082, the 57th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 2 Apr 2020. New records show when each source confirmed them.

Sources

References from the CNA

www.ibm.com/support/pages/node/6147195 confirm
exchange.xforce.ibmcloud.com/vulnerabilities/176668 vdb-entryxf

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.