Affected versions of swagger-ui are vulnerable to cross-site scripting. This vulnerability exists because swagger-ui automatically executes external Javascript that is loaded in via the url query string parameter when a Content-Type: application/javascript header is included.
An attacker can create a server that replies with a malicious script and the proper content-type, and then craft a swagger-ui URL that includes the location to their server/script in the url query string parameter. When viewed, such a link would execute the attacker's malicious script.
Update to 2.2.1 or later.
{
"cwe_ids": [
"CWE-79"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:11:55Z",
"nvd_published_at": null,
"severity": "HIGH"
}