CVE-2021-21667

published 2021-06-16

CVE-2021-21667: Jenkins Scriptler Plugin 3.2 and earlier does not escape parameter names shown in job configuration forms, resulting in a stored cross-site scripting (XSS)…

Priority P3 42 medium 5.4 CVSS 3.1

AV N AC L PR L UI R S C C L I L A N

Jenkins Scriptler Plugin 3.2 and earlier does not escape parameter names shown in job configuration forms, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Scriptler/Configure permission.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
jenkins	scriptler	<= 3.2	—
jenkins	scriptler_plugin	—	—
jenkins_project	jenkins_scriptler_plugin	unspecified – 3.2	—

Detection & IOCs extracted from sources · hover to see the quote

• → Stored XSS via unescaped parameter names in Scriptler Plugin job configuration forms; requires Scriptler/Configure permission to exploit ↗

• · Vulnerability only affects Scriptler Plugin versions 3.2 and earlier; version 3.3 introduces escaping of parameter names in job configuration forms and is not affected ↗
• · Exploitation requires the attacker to hold Scriptler/Configure permission on the Jenkins instance ↗

CVSS provenance

nvd v3.1 5.4 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

nvd v2.0 3.5 LOW AV:N/AC:M/Au:S/C:N/I:P/A:N

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CWE-79