CVE-2025-9826 Cross-site scripting in Hubshare

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

Which versions are affected by CVE-2025-9826?

It affects 1 product.

Products include 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.

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-2025-9826 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 Reflected XSS in Hubshare via Open Redirect High 8.5
• CVE-2024-6881 Stored XSS Vulnerability High 8.5
• CVE-2022-39016 Javascript injection in PDFtron in M-Files Hubshare High 8.2
• CVE-2022-39017 XSS in all comments fields in M-Files Hubshare High 8.2
• CVE-2022-39018 Broken access controls on PDFtron data in M-Files Hubshare High 8.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x6wm-h4q7-p8hv.