CVE-2018-14655

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.

Category

4.6
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat keycloak
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655 vendor advisory issue tracking
https://access.redhat.com/errata/RHSA-2018:3592 vendor advisory
https://access.redhat.com/errata/RHSA-2018:3593 vendor advisory
https://access.redhat.com/errata/RHSA-2018:3595 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14655?
CVE-2018-14655 has been scored as a medium severity vulnerability.
How to fix CVE-2018-14655?
To fix CVE-2018-14655, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-14655 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-14655 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-14655?
CVE-2018-14655 affects Red Hat keycloak.
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