In Eclipse Theia versions up to and including 1.2.0, the Markdown Preview (@theia/preview), can be exploited to execute arbitrary code.
{
"cpe": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.2.0"
}
],
"source": "CPE_RANGE"
}