The XML Sitemap Generator for Google WordPress plugin before 2.0.4 does not validate a parameter which can be set to an arbitrary value, thus causing XSS via error message or RCE if allow_url_include is turned on.
[
{
"product": "XML Sitemap Generator for Google",
"vendor": "Unknown",
"versions": [
{
"lessThan": "2.0.4",
"status": "affected",
"version": "2.0.4",
"versionType": "custom"
}
]
}
]