---
id: "CVE-2026-125388"
page: "https://infrastack.ai/live/CVE-2026-125388"
kind: "vulnerability"
aliases: ["CVE-2026-125388"]
title: "Group-Office: authenticated users can export other users' form submissions"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["forms", "group-office", "other", "self-hosted"]
not_affected_if: ["unauthenticated-only-access"]
published_at: "2026-11-10T00:17:12+00:00"
first_seen_at: "2026-11-10T00:28:43+00:00"
updated_at: "2026-11-10T00:30:11+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125388", "first_seen_at": "2026-11-10T00:28:43+00:00"}]
exploit_sources: []
---

# Group-Office: authenticated users can export other users' form submissions

Link for people: https://infrastack.ai/live/CVE-2026-125388 (this .md is for agents)

Group-Office, a business collaboration suite, lets any logged-in user download form reports through api/download.php without permission checks. An attacker can export every form submission as an XLSX file, including submissions they are not allowed to see.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Group-Office version against the fixed versions below.
- Look for the `api/download.php` endpoint on your Group-Office server.

## Fix

- Group-Office before `6.8.181` is affected; move to `6.8.181` or later on the 6.8 line.
- Group-Office before `25.0.116` is affected; move to `25.0.116` or later on the 25.0 line.
- Group-Office before `26.0.58` is affected; move to `26.0.58` or later on the 26.0 line.

## Timeline

- 2026-11-10T00:28:43+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125388

## Documents

- [advisory] Vendor advisory: github.com https://github.com/Intermesh/groupoffice/security/advisories/GHSA-42qf-m3j9-837r
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/group-office-before-6.8.181-25.0.116-and-26.0.58-missing-authorization-in-forms-report-download

## From the sources

Intermesh Group-Office before 6.8.181, 25.0.116, and 26.0.58 contains a missing authorization vulnerability that allows authenticated users to download form reports via api/download.php without permission checks. Attackers can request the business/forms/report blob with a form ID to export every submission as an XLSX file, disclosing submissions they are not permitted to see.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_