EUVD-2026-277135

fkie_cve-2026-33716

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at `plugin/Live/standAloneFiles/control.json.php` accepts a user-supplied `streamerURL` parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns `{"error": false}`, completely bypassing authentication. This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence. Commit 388fcd57dbd16f6cb3ebcdf1d08cf2b929941128 contains a patch.

GHSA-9hv9-gvwm-95f2 — AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php

Affected: Packagist: wwbn/avideo

## Summary

The standalone live stream control endpoint at `plugin/Live/standAloneFiles/control.json.php` accepts a user-supplied `streamerURL` parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns `{"error": false}`, completely bypassing authentication. This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence.

## Details

The vulnerability exists because the `streamerURL` parameter is accepted directly from user input with no validation:

**`plugin/Live/standAloneFiles/control.json.php:77-79`** — User input overrides server config: ```php if (!empty($_REQUEST['streamerURL'])) { $streamerURL = $_REQUEST['streamerURL']; } ```

**`plugin/Live/standAloneFiles/control.json.php:83-91`** — The user-controlled value is assigned to the request object: ```php $obj->streamerURL = $streamerURL; ```

**`plugin/Live/standAloneFiles/control.json.php:115-126`** — Token verification is sent to the attacker-controlled URL: ```php $verifyTokenURL = "{$obj->streamerURL}plugin/Live/verifyToken.json.php?token={$obj->token}"; // ... $content = file_get_contents($verifyTokenURL, false, stream_context_create($arrContextOptions)); ```

The legitimate `verifyToken.json.php` performs cryptographic token validation via `Live::decryptHash()` and checks token expiry (12-hour wi…

Most recent entries from all

EUVD-2026-277135

fkie_cve-2026-33716

GHSA-9hv9-gvwm-95f2 — AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php