Unrestricted upload of a file with dangerous type in Kibana can lead to arbitrary JavaScript execution in a victim’s browser (XSS) via crafted HTML and JavaScript files.
The attacker must have access to the Synthetics app AND/OR have access to write to the synthetics indices.
{
"cpes": [
"cpe:2.3:a:elasticsearch:kibana:*:*:*:*:*:node.js:*:*"
],
"severity": "Medium"
}