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Vulnerability record · CVE-2021-21620 · published 24 February 2021

CVE-2021-21620: Jenkins claim cross-site request forgery vulnerability

Jenkins · Claim

A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims.

4.3 CVSS 3.1 Medium EPSS 1.6% · top 24.7% CWE-352 · Cross-site request forgery
4.3CVSS 3.1 base score, v2 4.3
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A cross-site request forgery (CSRF) vulnerability in Jenkins Claim Plugin 2.18.1 and earlier allows attackers to change claims.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%282%29 Vendor Advisory
https://www.jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%282%29 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

5.4CVE-2021-21619Jenkins claim cross-site scripting vulnerabilityJenkins Claim Plugin 2.18.1 and earlier does not escape the user display name, resulting in a stored cross-site scripting (XSS) vulnerability exploit…EPSS 9.4%9.4CVE-2025-62593Ray browser-based RCE via insufficient User-Agent guardRay, an AI compute engine, contains a critical remote code execution flaw before version 2.52.0. Its defense against browser-based attacks relies on …KEVEPSS 62%analysed8.1CVE-2008-4128Cisco IOS HTTP Administration CSRF allows arbitrary command executionThe HTTP Administration component in Cisco IOS 12.4 on the 871 Integrated Services Router is vulnerable to multiple cross-site request forgery flaws.…KEVEPSS 34%analysed8.8CVE-2023-2533PaperCut NG/MF CSRF allows admin security setting changes and code executionPaperCut NG and MF contain a cross-site request forgery flaw that, under specific conditions, lets an attacker change security settings or execute ar…KEVEPSS 29%analysed8.0CVE-2014-100005D-Link DIR-600 router CSRF enables admin account creation and remote managementThe D-Link DIR-600 (rev. Bx) with firmware before 2.17b02 is affected by multiple cross-site request forgery flaws in hedwig.cgi, pigwidgeon.cgi and …KEVEPSS 43%analysed8.8CVE-2016-6277NETGEAR router cgi-bin command injection allows remote code executionMultiple NETGEAR router models fail to sanitize shell metacharacters in the path info passed to cgi-bin/, allowing remote command execution. The flaw…KEVEPSS 100%analysed9.8CVE-2020-10181Sumavision EMR router allows unauthenticated admin user creationThe goform/formEMR30 endpoint in Sumavision Enhanced Multimedia Router (EMR) 3.0.4.27 permits creation of arbitrary users with administrator privileg…KEVEPSS 15%analysed

Source: NIST National Vulnerability Database (record CVE-2021-21620), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.