Cross-site Scripting (XSS)

Overview org.jenkins-ci.main:jenkins-core is an open source automation server. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the description field of a generic 'offline' cause set via the POST config.xml API. An attacker with Agent/Configure permission can execut...

BIT-JENKINS-2026-27099

Jenkins 2.483 through 2.550 both inclusive, LTS 2.492.1 through 2.541.1 both inclusive does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting XSS vulnerability exploitable by attackers with Agent/Configure or...

Cross-site Scripting (XSS)

Overview org.jenkins-ci.main:jenkins-core is an open source automation server. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the UserCause function. An attacker can execute arbitrary JavaScript code in the context of other users by providing crafted input in the...

CVE-2026-27099

Jenkins 2.483 through 2.550 both inclusive, LTS 2.492.1 through 2.541.1 both inclusive does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting XSS vulnerability exploitable by attackers with Agent/Configure or...