PT-2026-27171 · Wwbn · Avideo

Published 2026-03-23 · Updated 2026-03-23 · CVE-2026-33649

Mitre

CVSS v3.1

8.1

High

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the plugin/Permissions/setPermission.json.php endpoint accepts GET parameters for a state-changing operation that modifies user group permissions. The endpoint has no CSRF token validation, and the application explicitly sets session.cookie samesite=None on session cookies. This allows an unauthenticated attacker to craft a page with <img> tags that, when visited by an admin, silently grant arbitrary permissions to the attacker's user group — escalating the attacker to near-admin access. As of time of publication, no known patched versions are available.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-33649

Affected Products

Avideo

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-33649 · Security Note
• https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj · Note