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Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, 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. Commit c85d076375fab095a14170df7ddb27058134d38c contains a patch.

PUBLISHED Reserved 2026-03-20 | Published 2026-03-23 | Updated 2026-03-23 | Assigner GitHub_M




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

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-284: Improper Access Control

Product status

<= 26.0
affected

References

github.com/...AVideo/security/advisories/GHSA-687q-32c6-8x68 exploit

github.com/...AVideo/security/advisories/GHSA-687q-32c6-8x68

github.com/...ommit/c85d076375fab095a14170df7ddb27058134d38c

cve.org (CVE-2026-33478)

nvd.nist.gov (CVE-2026-33478)

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