CVE-2026-84677 [MEDIUM] – Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin n

Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.