lazysizes through 5.2.0 allows execution of malicious JavaScript. The following attributes are not sanitized by the video-embed plugin: data-vimeo, data-vimeoparams, data-youtube and data-ytparams which can be abused to inject malicious JavaScript.
{
"severity": "MODERATE",
"nvd_published_at": "2020-04-22T16:15:00Z",
"github_reviewed_at": "2021-05-25T20:08:07Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-79"
]
}