The time and filter parameters in Fava prior to v1.22 are vulnerable to reflected cross-site scripting due to the lack of escaping of error messages which contained the parameters in verbatim.
{
"nvd_published_at": "2022-07-25T14:15:00Z",
"severity": "MODERATE",
"github_reviewed_at": "2022-08-06T09:34:18Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-79"
]
}