# CVE-2025-9826: Cross-site scripting in Hubshare

> Authenticated attackers can inject scripts into M-Files Hubshare, leading to code execution for other users.

- **Severity:** High 7.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 Sep 2025
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-x6wm-h4q7-p8hv

## What is CVE-2025-9826?

CVE-2025-9826 is a high-severity cross-site scripting vulnerability in M-Files Corporation Hubshare, published on 15 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Stored cross-site scripting vulnerability in M-Files Hubshare before version 25.8 allows authenticated attackers to cause script execution for other users.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-9826?

It affects 1 product.


Products: M-Files Hubshare.

## How do I fix CVE-2025-9826?

No fix has been published for CVE-2025-9826 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-9826 being exploited?

There is no known exploitation of CVE-2025-9826 in the wild and no public exploit code.

## Other vulnerabilities in M-Files Corporation Hubshare

- [CVE-2024-6124](https://insights.sbomify.com/CVE-2024-6124/): Reflected XSS in Hubshare via Open Redirect (high 8.5)
- [CVE-2024-6881](https://insights.sbomify.com/CVE-2024-6881/): Stored XSS Vulnerability (high 8.5)
- [CVE-2022-39016](https://insights.sbomify.com/CVE-2022-39016/): Javascript injection in PDFtron in M-Files Hubshare (high 8.2)
- [CVE-2022-39017](https://insights.sbomify.com/CVE-2022-39017/): XSS in all comments fields in M-Files Hubshare (high 8.2)
- [CVE-2022-39018](https://insights.sbomify.com/CVE-2022-39018/): Broken access controls on PDFtron data in M-Files Hubshare (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-9826 and fix it if it is affected.

What it is: CVE-2025-9826 is a high-severity cross-site scripting vulnerability in M-Files Corporation Hubshare, published on 15 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-9826 in the wild and no public exploit code.

Affected product: M-Files Corporation Hubshare. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-9826/ (Markdown: https://insights.sbomify.com/CVE-2025-9826/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-9826
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-9826
- OSV: https://osv.dev/vulnerability/CVE-2025-9826

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-9826/
Summaries are generated and may contain mistakes; the official description above is the record.