description: Jenkins 2.196 and earlier, LTS 2.176.3 and earlier did not escape the reason why a queue items is blcoked in tooltips, resulting in a stored XSS vulnerability exploitable by users able to control parts of the reason a queue item is blocked, such as label expressions not matching any idle executors.
affected:
{
product: Jenkins
vendor: Jenkins project
versions:
status: affected, version: 2.196 and earlier, LTS 2.176.3 and earlier
}