CVE-2021-25833
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductOnlyoffice Document Server
PublishedMar 1, 2021
First seenMar 1, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| onlyoffice document_server | 4.2.0.71 ≤ v ≤ 5.6.0.21 | — |
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