CVE-2026-33649
HIGH EPSS 6.9%
Published Mar 23, 20263mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
Published Mar 23, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
6.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-352 Cross-Site Request Forgery (CSRF) Authentication
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| wwbn | avideo | * | ≤26.0 |
References 1
- github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.