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Document ServerApplication · Onlyoffice

CVE-2025-68935

MEDIUM · 6.1 CVSS v3.1 Published 2025-12-25
Fix available
A fix is available. Upgrade to 9.2.1 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
ONLYOFFICE Docs before 9.2.1 allows XSS via the Font field for the Multilevel list settings window. This is related to DocumentServer.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Cross-site scripting (XSS) vulnerability in ONLYOFFICE Docs versions prior to 9.2.1 allows injection of malicious scripts through the Font field in the Multilevel list settings window of the DocumentServer component.

MitigationUpgrade ONLYOFFICE Docs to version 9.2.1 or later to remediate this XSS vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Document ServerApplication
Affected:< 9.2.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify ONLYOFFICE Document Server version
    Locate the installed version of ONLYOFFICE Document Server using your system's package manager, about page, or version check command appropriate to your deployment
    Affected if Version is below 9.2.1
  2. Verify DocumentServer component is active
    Confirm the DocumentServer service is running and accessible in your environment
    Affected if DocumentServer is active and reachable
  3. Confirm Multilevel list feature accessibility
    Determine if users have access to the document editor's Multilevel list settings window where the Font field is present
    Affected if Users can access the Multilevel list settings in the document editor

Environment is affected if ONLYOFFICE Document Server version is below 9.2.1 and users can access the Multilevel list settings with the Font field in the document editor.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 9.2.1 or later
Fixed in 9.2.1
Interim mitigation

Upgrade ONLYOFFICE Docs to version 9.2.1 or later to remediate this XSS vulnerability.

Recommended fix Moderate confidence

9.2.1 or later

  1. Identify the current ONLYOFFICE Document Server version in use
  2. Plan an upgrade to version 9.2.1 or later to resolve the XSS vulnerability
  3. Execute the upgrade following ONLYOFFICE's standard upgrade procedure for Document Server
  4. After upgrade, verify the Multilevel list settings window Font field no longer allows unsanitized input

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Document Server Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,280
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,648.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-68935 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data