CVE-2018-14655

lowpriority · track · 22EPSS 0.012 · 68 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.19% (68th) EPSS

CVSS 3.5 · low

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-24

A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.

cvss

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

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.4

v2.03.5lowAV:N/AC:M/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.05.4mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.04.6mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · ENISA EU

v3.04.6mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · secalert@redhat.com USexploitability 2.1 · impact 2.5

v3.05.4mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:L/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-79USprimaryCWE-79US

affected products (9)

Products and version ranges known to be affected.

Red Hat KeyCloak≤ 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Finalenisa_euvdEU
redhat keycloak= 3.4.3nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat keycloak= 4.0.0nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat keycloak= 4.3.0nvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
redhat single sign-onall versionsnvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
redhat single sign-on= 7.2nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
Maven org.keycloak:keycloak-parent≤ 3.4.3.FinalosvUSpkg:maven/org.keycloak/keycloak-parent
Maven org.keycloak:keycloak-parentall versionsosvUSpkg:maven/org.keycloak/keycloak-parent
Maven org.keycloak:keycloak-parent4.0.0.Beta1 → 4.0.0.Beta2osvUSpkg:maven/org.keycloak/keycloak-parent

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-458h-wv48-fq75Keycloak vulnerable to cross-site scripting via the state parameter2022-05-13ghsa · osvUS
A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using `response_mode=form_post` it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-11-13modified 2026-06-17

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+52917 more

references (12)

External citations — patches, advisories, analysis.

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