All versions of the package progressbar.js prior to 1.1.1 are vulnerable to Prototype Pollution via the function extend() in the file utils.js.
{
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2023-06-12T18:53:32Z",
"nvd_published_at": "2023-06-12T05:15:09Z",
"severity": "HIGH"
}