Joplin allows XSS via a LINK element in a note.
{
"cwe_ids": [
"CWE-79"
],
"github_reviewed": true,
"github_reviewed_at": "2021-04-20T19:38:53Z",
"nvd_published_at": "2020-11-06T07:15:00Z",
"severity": "MODERATE"
}