# CVE-2026-125390: Group-Office arbitrary local file read in FolderController

Source: https://junglewise.ai/threats/cve-2026-125390-group-office-before-6-8-181-25-0-116-and-26-0-58-contains-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-125390 · Severity: medium · CVSS 6.5 · Published 2026-11-10

Group-Office is a web-based collaboration and file management platform. An authenticated user can exploit a path traversal flaw in the file upload handler to read any file on the server by supplying absolute paths, potentially exposing other users' files and database credentials stored in config.php.

Technologies: [Intermesh Group-Office](https://junglewise.ai/threats/technologies/group-office). Vendors: [Intermesh](https://junglewise.ai/threats/vendors/intermesh).

## Quick answers

**Is CVE-2026-125390 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-125390 being exploited in the wild.

**How severe is CVE-2026-125390?** Medium severity, with a CVSS score of 6.5, published 10 November 2026.

**Which products and versions are affected?** Intermesh Group-Office before 6.8.181, 25.0.116, and 26.0.58.

**Is there a fix for CVE-2026-125390?** Yes: fixed in Group-Office 6.8.181, 25.0.116, and 26.0.58. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-125390 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-125390?** Check whether you run Intermesh Group-Office 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.

## How to fix

- Fixed in Group-Office 6.8.181, 25.0.116, and 26.0.58

## Technical details

The vulnerability exists in FolderController::actionProcessUploadQueue, which fails to validate that supplied file paths refer only to the user's temporary files. An authenticated attacker can provide absolute paths via the blobs parameter, allowing arbitrary files to be hard-linked or copied into the attacker's folder and subsequently downloaded. The fix validates that paths point only to temporary files belonging to the authenticated user.

## Affected products

- Intermesh Group-Office before 6.8.181, 25.0.116, and 26.0.58

## Timeline

- 2026-11-10: disclosed

## References

- [https://github.com/Intermesh/groupoffice/blob/v26.0.57/www/modules/files/controller/FolderController.php](https://github.com/Intermesh/groupoffice/blob/v26.0.57/www/modules/files/controller/FolderController.php)
- [https://github.com/Intermesh/groupoffice/commit/3c8e2104e65242b611f7d5a9a19452e369b6f28d](https://github.com/Intermesh/groupoffice/commit/3c8e2104e65242b611f7d5a9a19452e369b6f28d)

## Related threats

- [Group-Office server-side request forgery in Bookmark description](https://junglewise.ai/threats/cve-2026-63653-group-office-is-an-enterprise-customer-relationship-management)
- [Group-Office template injection in Contact/labels JMAP endpoint](https://junglewise.ai/threats/cve-2026-63011-group-office-is-an-enterprise-customer-relationship-management)
- [Group-Office stored XSS in reminders via HTML/JavaScript injection](https://junglewise.ai/threats/cve-2026-63010-group-office-is-an-enterprise-customer-relationship-management)
- [Intermesh Group-Office stored XSS in email viewer](https://junglewise.ai/threats/cve-2026-125389-intermesh-group-office-before-6-8-181-25-0-116-and-26-0-58)
- [Intermesh Group-Office missing authorization in form report download](https://junglewise.ai/threats/cve-2026-125388-intermesh-group-office-before-6-8-181-25-0-116-and-26-0-58)