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.
[
{
"product": "lazysizes",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "All versions including 5.2.0"
}
]
}
]