A form validation HTTP endpoint in Queue cleanup Plugin 1.3 and earlier does not escape a query parameter displayed in an error message. This results in a reflected cross-site scripting vulnerability (XSS).
Queue cleanup Plugin 1.4 correctly escapes the query parameter.
www.openwall.com/lists/oss-security/2020/03/25/2
github.com/jenkinsci/queue-cleanup-plugin
github.com/jenkinsci/queue-cleanup-plugin/commit/b3e562a427e704fc15dafe7664bd67aafcd4e03e
github.com/jenkinsci/queue-cleanup-plugin/commit/e7dae99aa3a414004e953303c7c687d65348de11
jenkins.io/security/advisory/2020-03-25/#SECURITY-1724
nvd.nist.gov/vuln/detail/CVE-2020-2169