Admidio allows Unauthenticated Access to Role-Restricted documents via neutralized .htaccess

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

• CVE-2026-34381: 0.58% estimated exploitation activity in the next 30 days; percentile 48.01 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Admidio relies on admmyfiles/.htaccess to deny direct HTTP access to uploaded documents. The Docker image ships with AllowOverride None in the Apache configuration, which causes Apache to silently ignore all .htaccess files. As a result, any file uploaded to the documents module regardless of the role-based permissions configured in the UI, is directly accessible over HTTP without authentication by anyone who knows the file path. The file path is disclosed in the upload response JSON. --- Root Cause File 1: Intended protection (ignored): admmyfiles/.htaccess <img width="408" height="403" alt="imagen" src="https://github.com/user-attachments/assets/95f0d389-a1a9-4dc4-9840-7f189d2c58ff" / File 2: Apache config that neutralizes it: Command in order to search in Docker container: docker exec admidio-sec-app cat /etc/apache2/apache2.conf /etc/apache2/apache2.conf (Docker image) <img width="492" height="328" alt="imagen"…

Published by the source

31 Mar 2026, 23:10 UTC

Last modified by the source

31 Mar 2026, 23:10 UTC

Source last checked

26 Oct 2026, 14:39 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-7fh7-8xqm-3g88

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# Patch Next advisory brief: CVE-2026-34381

Advisory: Admidio allows Unauthenticated Access to Role-Restricted documents via neutralized .htaccess
IDs: CVE-2026-34381, GHSA-7fh7-8xqm-3g88
Record: https://patchnext.com/advisories/cve-2026-34381 (revision 1, source checked 26 Oct 2026, 14:39 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: admidio/admidio 5.0.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist admidio/admidio: affected >= 5.0.0, < 5.0.8; fixed in 5.0.8

## Suggested inspection (read-only)
- Packagist admidio/admidio: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on admidio/admidio.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-7fh7-8xqm-3g88 (GitHub-reviewed advisory GHSA-7fh7-8xqm-3g88 lists affected ranges: Packagist admidio/admidio >=5.0.0 <5.0.8)

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