CVE-2021-25833: 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…

PriorityP272critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

43.53%

98.6th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
onlyoffice	document_server	4.2.0.71 – 5.6.0.21	—

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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