CVEs-PoC/2021/CVE-2021-25833.md

CVE-2021-25833

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.

POC

Reference

• https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833
• https://github.com/merrychap/poc_exploits/tree/master/ONLYOFFICE/CVE-2021-25833

Github

• https://github.com/merrychap/POC-onlyoffice