Vulnerability DatabaseCVE-2017-12158
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2017-12158
Published:October 26, 2017
Updated:May 17, 2026
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.
Related Resources (7)
https://access.redhat.com/errata/RHSA-2017:2904
https://web.archive.org/web/20210124114020/http://www.securityfocus.com/bid/101618
https://bugzilla.redhat.com/show_bug.cgi?id=1489161
https://access.redhat.com/errata/RHSA-2017:2905
http://www.securityfocus.com/bid/101618
https://access.redhat.com/errata/RHSA-2017:2906
https://nvd.nist.gov/vuln/detail/CVE-2017-12158
Do you need more information?
Contact Us
CVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-444
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.67