CVE-2025-10777 JSC R7 R7-Office Document Server downloadas path traversal
Remote attackers can exploit a path traversal flaw in the downloadas endpoint to read arbitrary files from the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-10777?
CVE-2025-10777 is a medium-severity path traversal vulnerability in JSC R7 R7-Office Document Server, published on 22 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in JSC R7 R7-Office Document Server up to 20250820. Impacted is an unknown function of the file /downloadas/. Executing manipulation of the argument cmd can lead to path traversal. The attack can be launched remotely. Upgrading to version 2025.3.1.923 is recommended to address this issue. The affected component should be upgraded. R7-Office is a fork of OpenOffice and at the moment it remains unclear if OpenOffice is affected as well. The OpenOffice team was not able to reproduce the issue in their codebase. The vendor replied: "We confirm that this vulnerability has been verified and patched in release 2025.3.1.923. During our security testing, it was not possible to exploit the issue - the server consistently returns proper error responses to the provided scenarios."
Weakness: CWE-22
Which versions are affected by CVE-2025-10777?
How do I fix CVE-2025-10777?
No fix has been published for CVE-2025-10777 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-10777 being exploited?
There is no known exploitation of CVE-2025-10777 in the wild and no public exploit code.
Sources
Also known as GHSA-7v7c-mgwc-64fc.