jQuery from 1.1.4 until 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.
{
"nvd_published_at": "2019-04-20T00:29:00Z",
"github_reviewed_at": "2019-04-26T16:28:41Z",
"cwe_ids": [
"CWE-1321",
"CWE-79"
],
"severity": "MODERATE",
"github_reviewed": true
}