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Vulnerability record · CVE-2021-21700 · published 12 November 2021

CVE-2021-21700: Jenkins scriptler cross-site scripting vulnerability

Jenkins · Scriptler

Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.

5.4 CVSS 3.1 Medium EPSS 0.71% · top 48.5% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Jenkins Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI when asking to confirm their deletion, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by exploitable by attackers able to create Scriptler scripts.

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/2021/11/12/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2406 Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/11/12/1 Mailing ListThird Party Advisory
https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2406 Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2021-21700), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.