All versions of m-backdoor contain malicious code. The package downloads a file from a remote server and executes it as a preinstall script. At the time of the release of this advisory the downloaded file only defaces websites by removing elements randomly from the DOM.
Remove the package from your system.
{
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T19:01:56Z",
"nvd_published_at": null,
"severity": "CRITICAL"
}