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

Source: https://junglewise.ai/threats/cve-2025-10248-xss-vulnerability-in-opentext-filr-appliance-versions-upto-25-1-2  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-09. Updated: 2026-11-09  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/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

- [https://my.opentext.com/support/article/11802664](https://my.opentext.com/support/article/11802664)