Loofah allows non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments.
Users are affected if running Loofah < 2.2.1, but only:
JRuby users are not affected.
{
"nvd_published_at": null,
"cwe_ids": [
"CWE-79"
],
"severity": "MODERATE",
"github_reviewed_at": "2020-06-16T22:02:35Z",
"github_reviewed": true
}