CVE-2026-86720: WWBN AVideo Missing Authorization via resendRestreamer.json.php

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-08 · updated 2026-09-08
Weakness: CWE-639

Description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ownership of live_restreams_id in resendRestreamer.json.php, allowing authenticated users with canStream to access other users' restream destinations. Attackers can broadcast their live stream to victim-configured restream destinations by supplying arbitrary live_restreams_id values, hijacking YouTube, Facebook, or Twitch streams using victim stream keys.

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-7c8r-rj82-c8fv
https://www.vulncheck.com/advisories/wwbn-avideo-missing-authorization-via-resendrestreamer-json-php
https://github.com/WWBN/AVideo/security/advisories/GHSA-7c8r-rj82-c8fv

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