CVE-2026-33507 | THREATINT

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `objects/pluginImport.json.php` endpoint allows admin users to upload and install plugin ZIP files containing executable PHP code, but lacks any CSRF protection. Combined with the application explicitly setting `session.cookie_samesite = 'None'` for HTTPS connections, an unauthenticated attacker can craft a page that, when visited by an authenticated admin, silently uploads a malicious plugin containing a PHP webshell, achieving Remote Code Execution on the server. Commit d1bc1695edd9ad4468a48cea0df6cd943a2635f3 contains a patch.

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

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem types

CWE-352: Cross-Site Request Forgery (CSRF)

Product status

<= 26.0

affected

References

github.com/...AVideo/security/advisories/GHSA-hv36-p4w4-6vmj exploit

github.com/...AVideo/security/advisories/GHSA-hv36-p4w4-6vmj

github.com/...ommit/d1bc1695edd9ad4468a48cea0df6cd943a2635f3

cve.org (CVE-2026-33507)

nvd.nist.gov (CVE-2026-33507)

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