Affected versions of shout do not escape the /topic command in messages, and are therefore vulnerable to cross-site scripting.
Update to version 0.50.0 or later.
{
"cwe_ids": [
"CWE-80"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:51:31Z",
"nvd_published_at": null,
"severity": "MODERATE"
}