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CVE-2021-21619

Good to know:

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Date: February 24, 2021

Jenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers who are able to control the display names of Jenkins users, either via the security realm, or directly inside Jenkins.

Language: Java

Severity Score

Related Resources (5)

http://www.openwall.com/lists/oss-security/2021/02/24/3
https://nvd.nist.gov/vuln/detail/CVE-2021-21619
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20(1)
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%281%29
https://www.mend.io/vulnerability-database/CVE-2021-21619

Severity Score

Weakness Type (CWE)

Cross-Site Scripting (XSS)

CWE-79

Top Fix

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Upgrade Version

Upgrade to version org.jenkins-ci.plugins:claim:2.18.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
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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