The joomsport_md_load AJAX action of the JoomSport WordPress plugin before 5.1.8, registered for both unauthenticated and unauthenticated users, unserialised user input from the shattr POST parameter, leading to a PHP Object Injection issue. Even though the plugin does not have a suitable gadget chain to exploit this, other installed plugins could, which might lead to more severe issues such as RCE
[
{
"product": "JoomSport – for Sports: Team & League, Football, Hockey & more",
"vendor": "Unknown",
"versions": [
{
"lessThan": "5.1.8",
"status": "affected",
"version": "5.1.8",
"versionType": "custom"
}
]
}
]