The allows any authenticated user to join a private group due to a missing authorization check on a function
[
{
"vendor": "Unknown",
"product": "Himer",
"versions": [
{
"status": "affected",
"versionType": "semver",
"version": "0",
"lessThan": "2.1.1"
}
],
"defaultStatus": "unaffected"
}
]