AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection

Exploitation

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

CVSS

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

EPSS

• CVE-2026-33478: 13.27% estimated exploitation activity in the next 30 days; percentile 96.39 (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 Multiple vulnerabilities in AVideo's CloneSite plugin chain together to allow a completely unauthenticated attacker to achieve remote code execution. The clones.json.php endpoint exposes clone secret keys without authentication, which can be used to trigger a full database dump via cloneServer.json.php. The dump contains admin password hashes stored as MD5, which are trivially crackable. With admin access, the attacker exploits an OS command injection in the rsync command construction in cloneClient.json.php to execute arbitrary system commands. Details Step 1: Clone Key Disclosure plugin/CloneSite/clones.json.php:1-8 has zero authentication: The response includes the key field for every registered clone, which is the sole authentication credential for clone operations. Step 2: Database Dump via Stolen Key plugin/CloneSite/cloneServer.json.php:73-97 — once the key passes Clones::thisURLCanCloneMe(), the server executes mysqldump and writes the result to a web-accessible…

Published by the source

20 Mar 2026, 20:43 UTC

Last modified by the source

8 Apr 2026, 22:49 UTC

Source last checked

26 Oct 2026, 14:39 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-687q-32c6-8x68

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# Patch Next advisory brief: CVE-2026-33478

Advisory: AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
IDs: CVE-2026-33478, GHSA-687q-32c6-8x68
Record: https://patchnext.com/advisories/cve-2026-33478 (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: Critical (CVSS 10.0)
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 <= 26.0

## 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-687q-32c6-8x68 (GitHub-reviewed advisory GHSA-687q-32c6-8x68 lists affected ranges: Packagist wwbn/avideo >=0 <=26.0)

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