Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not implement any restrictions for the URL rendering a formatted preview of markup passed as a query parameter, resulting in a reflected cross-site scripting (XSS) vulnerability if the configured markup formatter does not prohibit unsafe elements (JavaScript) in markup.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published: 2021-01-13T15:55:32

Updated: 2024-08-03T18:16:23.627Z

Reserved: 2021-01-04T00:00:00

Link: CVE-2021-21610

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-01-13T16:15:14.007

Modified: 2023-11-02T22:04:07.153

Link: CVE-2021-21610

cve-icon Redhat

Severity : Important

Publid Date: 2021-01-13T00:00:00Z

Links: CVE-2021-21610 - Bugzilla