In versions of the @theia/plugin-ext component of Eclipse Theia prior to 1.18.0, Webview contents can be hijacked via postMessage().
{ "versions": [ { "introduced": "0" }, { "fixed": "1.18.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41038.json"