The Spotify Play Button WordPress plugin through 1.0 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
[
{
"vendor": "Unknown",
"product": "Spotify Play Button",
"versions": [
{
"status": "affected",
"versionType": "semver",
"version": "0",
"lessThanOrEqual": "1.0"
}
],
"defaultStatus": "affected"
}
]