Jenkins.XSS.vulnerability.in.plugin.manager

Description

Jenkins 2.270 through 2.393 (both inclusive), LTS 2.277.1 through 2.375.3 (both inclusive) does not escape the Jenkins version a plugin depends on when rendering the error message stating its incompatibility with the current version of Jenkins in the plugin manager.
This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide plugins to the configured update sites and have this message shown by Jenkins instances.

Affected Products

Jenkins 2.270 through 2.393 (both inclusive), LTS 2.277.1 through 2.375.3 (both inclusive)

Impact

Cross-site scripting: Remote attackers able to provide plugins to the configured update sites and have this message shown by Jenkins instances.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.

CVE References