The Page Builder KingComposer WordPress plugin through 2.9.6 does not validate the id parameter before redirecting the user to it via the kc_get_thumbn AJAX action available to both unauthenticated and authenticated users
[
{
"product": "Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme",
"vendor": "Unknown",
"versions": [
{
"lessThanOrEqual": "2.9.6",
"status": "affected",
"version": "2.9.6",
"versionType": "custom"
}
]
}
]