CVE-2020-4304

mediumpriority · track · 24EPSS 0.008 · 57 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.82% (57th) EPSS

CVSS 4.3 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

IBM WebSphere Application Server - Liberty 17.0.0.3 through 20.0.0.3 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: 176670.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.06.1mediumCVSS:3.0/I:L/PR:N/UI:R/AC:L/AV:N/C:L/A:N/S:C/RL:O/E:H/RC:Csecondary · ENISA EU

v3.06.1mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · psirt@us.ibm.com USexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimary

affected products (3)

Products and version ranges known to be affected.

IBM WebSphere Application Server Liberty≤ 20.0.0.3enisa_euvdEU
IBM WebSphere Application Server Liberty≤ 17.0.0.3enisa_euvdEU
ibm websphere application server17.0.0.3 → 20.0.0.3nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-04-02modified 2026-06-17

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Related entries.

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+53008 more

references (29)

External citations — patches, advisories, analysis.

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