CVE-2023-6134
Keycloak vulnerable to reflected XSS via wildcard in OIDC redirect_uri
4.6
MEDIUM
CVSS 3.1
EPSS 2.5%
Description
Keycloak prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This could permit an attacker to submit a specially crafted request leading to XSS or possibly further attacks.
How to fix CVE-2023-6134
To remediate CVE-2023-6134, upgrade the affected package to a fixed version below.
- Maven/org.keycloak:keycloak-services—upgrade to 23.0.3 or later
Is CVE-2023-6134 being exploited?
Low — EPSS is 2.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 23.0.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N |