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CVE-2020-10776

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Date: November 16, 2020

A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.

Language: Java

Severity Score

Related Resources (4)

https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c
https://nvd.nist.gov/vuln/detail/CVE-2020-10776
https://bugzilla.redhat.com/show_bug.cgi?id=1847428
https://www.mend.io/vulnerability-database/CVE-2020-10776

Severity Score

Weakness Type (CWE)

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

CWE-79

Top Fix

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Upgrade Version

Upgrade to version org.keycloak:keycloak-server-spi-private:11.0.3;org.keycloak:keycloak-server-spi-private:11.0.3;org.keycloak:keycloak-services:11.0.3;org.keycloak:keycloak-services:11.0.3;org.keycloak:keycloak-services:11.0.3;org.keycloak:keycloak-services:11.0.3;org.keycloak:keycloak-services:11.0.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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