A file extension handling issue was found in [server] module of ONLYOFFICE DocumentServer v4.2.0.71-v5.6.0.21. The file extension is controlled by an attacker through the request data and leads to arbitrary file overwriting. Using this vulnerability, a remote attacker can obtain remote code execution on DocumentServer.
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:onlyoffice:document_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0.71"
},
{
"last_affected": "5.6.0.21"
}
],
"source": "CPE_RANGE"
}
]
}