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, resulting 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:
{
defaultStatus: unaffected
product: Jenkins
vendor: Jenkins Project
versions:
changes: [at: 2.375.4, status: unaffected], lessThan: 2.*, status: affected, version: 2.270, versionType: maven
}