The WordPress Popup WordPress plugin through 1.9.3.8 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)
[
{
"product": "Popups – WordPress Popup",
"vendor": "Unknown",
"versions": [
{
"lessThanOrEqual": "1.9.3.8",
"status": "affected",
"version": "1.9.3.8",
"versionType": "custom"
}
]
}
]