The FluentSMTP WordPress plugin before 2.2.3 does not sanitize or escape email content, making it vulnerable to stored cross-site scripting attacks (XSS) when an administrator views the email logs. This exploit requires other plugins to enable users to send emails with unfiltered HTML.
[
{
"vendor": "Unknown",
"product": "FluentSMTP",
"versions": [
{
"status": "affected",
"versionType": "custom",
"version": "0",
"lessThan": "2.2.3"
}
],
"defaultStatus": "unaffected",
"collectionURL": "https://wordpress.org/plugins"
}
]