CVE-2025-10248: OpenText Filr Appliance stored XSS via file upload

CVE-2025-10248 · Severity: info · Published 2026-11-09

OpenText Filr is an enterprise file sharing and collaboration appliance. An authenticated user can upload a malicious file that executes JavaScript in other users' browsers when they access that file, potentially compromising accounts and stealing sensitive data.

Vendors: Opentext.

Quick answers

Is CVE-2025-10248 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-10248 being exploited in the wild.
How severe is CVE-2025-10248?
Informational severity, published 9 November 2026.
Which products and versions are affected?
Opentext Filr Appliance up to 25.1.2.
Is there a fix for CVE-2025-10248?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-10248 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-10248?
Check whether you run Opentext Filr Appliance at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in Filr's file upload and rendering functionality, allowing authenticated attackers to inject malicious JavaScript. The vulnerability requires user authentication and file upload privileges; successful exploitation stores the payload persistently, affecting any user who views the uploaded content.

Affected products

  • OpenText Filr Appliance up to 25.1.2

References

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