CVE-2025-68936 Cross-site scripting in Document Server

Medium 6.4 Published 25 Dec 2025 Updated 26 Dec 2025

An attacker can inject malicious scripts via the Color theme name in ONLYOFFICE Document Server, potentially leading to code execution or account takeover.

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-2025-68936?

CVE-2025-68936 is a medium-severity cross-site scripting vulnerability in ONLYOFFICE Document Server, published on 25 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

ONLYOFFICE Docs before 9.2.1 allows XSS via the Color theme name. This is related to DocumentServer.

Weakness: CWE-79

Which versions are affected by CVE-2025-68936?

It affects 1 product.

Products include Onlyoffice Document Server.

How do I fix CVE-2025-68936?

No fix has been published for CVE-2025-68936 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-68936 being exploited?

There is no known exploitation of CVE-2025-68936 in the wild and no public exploit code.

Sources

Also known as GHSA-v55r-6gfm-698m.