CVE-2026-33507

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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

0.37% chance of exploitation in the next 30 days, 30th percentile

Published

2026-03-23

Proof-of-concept exploits (1)

• advisories/GHSA-hv36-p4w4-6vmj

References

• CVE Record
• NVD entry

Related

• CVE-2026-33502
• CVE-2026-33509
• CVE-2026-33500
• CVE-2026-33512
• CVE-2026-33499
• CVE-2026-33513