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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLThoNzctM3h3ci1ocWho

Cross-site scripting in Jenkins Kiuwan Plugin

Jenkins Kiuwan Plugin 1.6.0 and earlier does not escape query parameters in an error message for a form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.

Only older releases of Jenkins are affected by this vulnerability. Jenkins 2.275 and newer, LTS 2.263.2 and newer include a protection preventing this from being exploitable.

Jenkins Kiuwan Plugin 1.6.1 escapes affected parts of the error message in the form validation endpoint.

Permalink: https://github.com/advisories/GHSA-8h77-3xwr-hqhh
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLThoNzctM3h3ci1ocWho
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 3 years ago
Updated: 10 months ago

CVSS Score: 6.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Identifiers: GHSA-8h77-3xwr-hqhh, CVE-2021-21666
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-21666
• https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-2367
• http://www.openwall.com/lists/oss-security/2021/06/10/14
• https://github.com/jenkinsci/kiuwan-plugin/commit/a5f6fdb1b8ad09d170547a4cc2b90c4829ef1f0a
• https://github.com/advisories/GHSA-8h77-3xwr-hqhh

Repository: https://github.com/jenkinsci/kiuwan-plugin
Blast Radius: 1.0

Affected Packages