AVideo affected by unauthenticated application takeover via exposed web installer on uninitialized deployments

Exploitation

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

CVSS

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

EPSS

• CVE-2026-33038: 0.51% estimated exploitation activity in the next 30 days; percentile 43.46 (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 The install/checkConfiguration.php endpoint performs full application initialization — database setup, admin account creation, and configuration file write — from unauthenticated POST input. The only guard is checking whether videos/configuration.php already exists. On uninitialized deployments, any remote attacker can complete the installation with attacker-controlled credentials and an attacker-controlled database, gaining full administrative access. Affected Component - install/checkConfiguration.php — entire file (lines 1-273) Description No authentication or access restriction on installer endpoint The checkConfiguration.php file performs the most privileged operations in the application — creating the database schema, the admin account, and the configuration file — with no authentication, no setup token, no CSRF protection, and no IP restriction. The sole guard is a file-existence check: If videos/configuration.php does not exist (fresh deployment, container restart…

Published by the source

17 Mar 2026, 19:46 UTC

Last modified by the source

20 Mar 2026, 21:22 UTC

Source last checked

26 Oct 2026, 14:38 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-2f9h-23f7-8gcx

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# Patch Next advisory brief: CVE-2026-33038

Advisory: AVideo affected by unauthenticated application takeover via exposed web installer on uninitialized deployments
IDs: CVE-2026-33038, GHSA-2f9h-23f7-8gcx
Record: https://patchnext.com/advisories/cve-2026-33038 (revision 1, source checked 26 Oct 2026, 14:38 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist wwbn/avideo: affected <= 25.0

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

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on wwbn/avideo.
- 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-2f9h-23f7-8gcx (GitHub-reviewed advisory GHSA-2f9h-23f7-8gcx lists affected ranges: Packagist wwbn/avideo >=0 <=25.0)

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