The Custom Content Shortcode WordPress plugin before 4.0.2 does not escape custom fields before outputting them, which could allow Contributor+ (v < 4.0.1) or Admin+ (v < 4.0.2) users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed. Please note that such attack is still possible by admin+ in single site blogs by default (but won’t be when the unfiltered_html is disallowed)
[
{
"product": "Custom Content Shortcode",
"vendor": "Unknown",
"versions": [
{
"lessThan": "4.0.2",
"status": "affected",
"version": "4.0.2",
"versionType": "custom"
}
]
}
]