In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage().
{
"cpe": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.18.0"
}
],
"source": "CPE_RANGE"
}