CVE-2025-5301 | OnlyOffice Docs up to 8.3.1 WOPI Protocol cross site scripting

A vulnerability was found in OnlyOffice Docs up to 8.3.1. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component WOPI Protocol Handler. The manipulation leads to cross site scripting.

This vulnerability is known as CVE-2025-5301. The attack can be launched remotely. There is no exploit available.

It is recommended to upgrade the affected component.