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CVE-2021-42567

Good to know:

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Date: December 7, 2021

Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.

Language: Java

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2021-42567
https://github.com/apereo/cas/releases
https://github.com/apereo/cas
https://apereo.github.io/2021/10/18/restvuln/
https://github.com/apereo/cas/commit/376bf087d6d4267f61fc9f8028aa0d1ef407c3f0
https://apereo.github.io/2021/10/18/restvuln
https://www.mend.io/vulnerability-database/CVE-2021-42567

Severity Score

Weakness Type (CWE)

Cross-Site Scripting (XSS)

CWE-79

Top Fix

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Upgrade Version

Upgrade to version org.apereo.cas:cas-server-support-oauth-uma-core:6.3.7.1,6.4.2;org.apereo.cas:cas-server-support-saml-idp-web;6.3.7.1,6.4.2;org.apereo.cas:cas-server-support-oidc:6.3.7.1,6.4.2;org.apereo.cas:cas-server-support-rest-core:6.3.7.1,6.4.2;org.apereo.cas:cas-server-support-rest-services:6.3.7.1,6.4.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
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): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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