The My Calendar WordPress plugin before 3.4.24 does not sanitise and escape some parameters, which could allow users with a role as low as Subscriber to perform Cross-Site Scripting attacks (depending on the permissions set by the admin)
[
{
"vendor": "Unknown",
"product": "My Calendar",
"versions": [
{
"status": "affected",
"versionType": "semver",
"version": "0",
"lessThan": "3.4.24"
}
],
"defaultStatus": "unaffected"
}
]