CVE-2025-9826
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 · uneditedStored cross-site scripting vulnerability in M-Files Hubshare before version 25.8 allows authenticated attackers to cause script execution for other users.
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 confidenceStored cross-site scripting (XSS) vulnerability in M-Files Hubshare versions prior to 25.8 allows authenticated users to inject malicious scripts that persist on the server and execute in the browsers of other users who view the contaminated content.
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< 25.8CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify installed M-Files Hubshare versionAccess the M-Files Hubshare administration interface or check the product About section. Alternatively, query the M-Files Server information via the M-Files Admin client or check the installed software version on the server hosting Hubshare.Affected if The installed version is any release prior to 25.8 (for example, 25.7, 25.6, earlier versions).
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Verify web client access is enabledConfirm that the M-Files Hubshare web client or web interface is accessible to users. Check the server configuration or attempt to access the Hubshare URL through a web browser.Affected if The web interface is active and accessible, as the XSS payload executes in user browsers when viewing contaminated content.
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Confirm user authentication is permittedReview the authentication settings in M-Files Hubshare to ensure regular user accounts (non-admin) can log in and access document repositories.Affected if Standard authenticated users can log in, since the vulnerability is exploited by authenticated users injecting scripts that affect other users viewing the content.
Your environment is affected if M-Files Hubshare version is below 25.8 and the web interface with user authentication is enabled.
Generated from the published advisory. Verify against your own configuration.
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 · scoped25.8
Upgrade M-Files Hubshare to version 25.8 or later. As a compensating control, implement content security policy headers and validate/sanitize all user-supplied input before storage and display.
25.8
- 1. Identify the current version of M-Files Hubshare currently deployed
- 2. Plan and schedule an upgrade to Hubshare version 25.8 or later
- 3. Perform the upgrade following M-Files standard upgrade procedures
- 4. After upgrade, verify the new version is 25.8 or higher
- 5. Test that the stored XSS vulnerability is no longer exploitable
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-9826 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-9826 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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