What is CVE-2021-20195?

CVE-2021-20195 is a vulnerability found in Keycloak versions before 13.0.0, which allows for a Self Stored XSS attack vector that could lead to a complete account takeover.

What is the severity of CVE-2021-20195?

The severity of CVE-2021-20195 is critical with a CVSS score of 9.6.

How can the CVE-2021-20195 vulnerability be exploited?

The CVE-2021-20195 vulnerability can be exploited through a Self Stored XSS attack vector, where user-supplied data fields are not properly encoded and JavaScript code is used to process the data.

Which software versions are affected by CVE-2021-20195?

CVE-2021-20195 affects Keycloak versions before 13.0.0.

How do I mitigate the CVE-2021-20195 vulnerability?

To mitigate the CVE-2021-20195 vulnerability, it is recommended to update Keycloak to version 13.0.0 or later.

Vulnerability/
CVE-2021-20195

critical

9.6

CWE

116 20 79

22/1/2021

28/5/2021

3/8/2024

CVE-2021-20195: Input Validation

First published: Fri Jan 22 2021(Updated: )

A flaw was found in keycloak in versions before 13.0.0. A Self Stored XSS attack vector escalating to a complete account takeover is possible due to user-supplied data fields not being properly encoded and Javascript code being used to process the data. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
Redhat Keycloak	<12.0.3
redhat/keycloak	<13.0.0	13.0.0

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Frequently Asked Questions

What is CVE-2021-20195?
CVE-2021-20195 is a vulnerability found in Keycloak versions before 13.0.0, which allows for a Self Stored XSS attack vector that could lead to a complete account takeover.
What is the severity of CVE-2021-20195?
The severity of CVE-2021-20195 is critical with a CVSS score of 9.6.
How can the CVE-2021-20195 vulnerability be exploited?
The CVE-2021-20195 vulnerability can be exploited through a Self Stored XSS attack vector, where user-supplied data fields are not properly encoded and JavaScript code is used to process the data.
Which software versions are affected by CVE-2021-20195?
CVE-2021-20195 affects Keycloak versions before 13.0.0.
How do I mitigate the CVE-2021-20195 vulnerability?
To mitigate the CVE-2021-20195 vulnerability, it is recommended to update Keycloak to version 13.0.0 or later.

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