Jenkins 2.227 and earlier, LTS 2.204.5 and earlier does not properly escape node labels that are shown in the form validation for label expressions on job configuration pages, resulting in a stored XSS vulnerability exploitable by users able to define node labels.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.204.5"
},
{
"introduced": "0"
},
{
"last_affected": "2.227"
}
]
}