🛡️ CVE-2026-34247
🟡 CVSS 5.4 — Medium ⚠️ Exploit Public CWE-862 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Live/uploadPoster.php` endpoint allows any authenticated user to overwrite the poster image for any scheduled live stream by supplying an arbitrary `live_schedule_id`. The endpoint only checks `User::isLogged()` but never verifies that the authenticated user owns the targeted schedule. After overwriting the poster, the endpoint broadcasts a `socketLiveOFFCallback` notification containing the victim's broadcast key and user ID to all connected WebSocket clients. Commit 5fcb3bdf59f26d65e203cfbc8a685356ba300b60 fixes the issue.

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE CWE-862
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-27
Updated 2026-06-02
Modified 2026-03-31

Affected Packages

Software From version Fixed in
avideo 26.0
wwbn/avideo

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