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Vulnerability record · CVE-2021-21635 · published 30 March 2021

CVE-2021-21635: Jenkins rest list parameter cross-site scripting vulnerability

Jenkins · Rest List Parameter

Jenkins REST List Parameter Plugin 1.3.0 and earlier does not escape a parameter name reference in embedded JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

5.4 CVSS 3.1 Medium EPSS 8.8% · top 5.0% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
8.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Jenkins REST List Parameter Plugin 1.3.0 and earlier does not escape a parameter name reference in embedded JavaScript, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

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

Affected products

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

References

LinkTags
http://www.openwall.com/lists/oss-security/2021/03/30/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2261 Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/03/30/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2261 Vendor Advisory

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

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Source: NIST National Vulnerability Database (record CVE-2021-21635), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.