Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.
{
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "12.0.8"
},
{
"introduced": "13.0.0"
},
{
"fixed": "13.0.3"
}
]
}