CVE-2018-14655 | BDVDB-2026-109355 Detail

Red Hatkeycloak

Description#

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.

Impact#

Per CVSS v3.0: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References#

Exploit#

No public exploit known

History#

Version 12018-11-13Record published in the CVE List.
Version 22024-08-05Most recent update recorded in the CVE List.

Published

Published: 2018-11-13
Last modified: 2024-08-05

Vendor information

Vendor: Red Hat
Product: keycloak

All Red Hat vulnerabilities

Score

4.6 Medium

EPSS

1.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 68.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Scripting

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

Not available

CVSS v3.0

4.6 Medium

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	None

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).