Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-40911

WWBN AVideo is an open source video platform. In versions 29.0 and prior, the YPTSocket plugin's WebSocket server relays attacker-supplied JSON message bodies to every connected client without sanitizing the `msg` or `callback` fields. On the client side, `plugin/YPTSocket/script.js` contains two `eval()` sinks fed directly by those relayed fields (`json.msg.autoEvalCodeOnHTML` at line 568 and `json.callback` at line 95). Because tokens are minted for anonymous visitors and never revalidated beyond decryption, an unauthenticated attacker can broadcast arbitrary JavaScript that executes in the origin of every currently-connected user (including administrators), resulting in universal account takeover, session theft, and privileged action execution. Commit c08694bf6264eb4decceb78c711baee2609b4efd contains a fix.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.3%
CVSS Severity
CVSS v3 Score 10.0
Products affected by CVE-2026-40911
  • Wwbn » Avideo » Version: N/A
    cpe:2.3:a:wwbn:avideo:-
  • Wwbn » Avideo » Version: 10.1
    cpe:2.3:a:wwbn:avideo:10.1
  • Wwbn » Avideo » Version: 10.2
    cpe:2.3:a:wwbn:avideo:10.2
  • Wwbn » Avideo » Version: 10.4
    cpe:2.3:a:wwbn:avideo:10.4
  • Wwbn » Avideo » Version: 10.8
    cpe:2.3:a:wwbn:avideo:10.8
  • Wwbn » Avideo » Version: 11
    cpe:2.3:a:wwbn:avideo:11
  • Wwbn » Avideo » Version: 11.1
    cpe:2.3:a:wwbn:avideo:11.1
  • Wwbn » Avideo » Version: 11.1.1
    cpe:2.3:a:wwbn:avideo:11.1.1
  • Wwbn » Avideo » Version: 11.5
    cpe:2.3:a:wwbn:avideo:11.5
  • Wwbn » Avideo » Version: 11.6
    cpe:2.3:a:wwbn:avideo:11.6
  • Wwbn » Avideo » Version: 12.4
    cpe:2.3:a:wwbn:avideo:12.4
  • Wwbn » Avideo » Version: 14.2
    cpe:2.3:a:wwbn:avideo:14.2
  • Wwbn » Avideo » Version: 14.3
    cpe:2.3:a:wwbn:avideo:14.3
  • Wwbn » Avideo » Version: 14.3.1
    cpe:2.3:a:wwbn:avideo:14.3.1
  • Wwbn » Avideo » Version: 14.4
    cpe:2.3:a:wwbn:avideo:14.4
  • Wwbn » Avideo » Version: 2.2
    cpe:2.3:a:wwbn:avideo:2.2
  • Wwbn » Avideo » Version: 2.4
    cpe:2.3:a:wwbn:avideo:2.4
  • Wwbn » Avideo » Version: 2.7
    cpe:2.3:a:wwbn:avideo:2.7
  • Wwbn » Avideo » Version: 3.4
    cpe:2.3:a:wwbn:avideo:3.4
  • Wwbn » Avideo » Version: 3.4.1
    cpe:2.3:a:wwbn:avideo:3.4.1
  • Wwbn » Avideo » Version: 4.0
    cpe:2.3:a:wwbn:avideo:4.0
  • Wwbn » Avideo » Version: 4.0.1
    cpe:2.3:a:wwbn:avideo:4.0.1
  • Wwbn » Avideo » Version: 4.0.2
    cpe:2.3:a:wwbn:avideo:4.0.2
  • Wwbn » Avideo » Version: 5.0
    cpe:2.3:a:wwbn:avideo:5.0
  • Wwbn » Avideo » Version: 6.5
    cpe:2.3:a:wwbn:avideo:6.5
  • Wwbn » Avideo » Version: 7.2
    cpe:2.3:a:wwbn:avideo:7.2
  • Wwbn » Avideo » Version: 7.3
    cpe:2.3:a:wwbn:avideo:7.3
  • Wwbn » Avideo » Version: 7.4
    cpe:2.3:a:wwbn:avideo:7.4
  • Wwbn » Avideo » Version: 7.5
    cpe:2.3:a:wwbn:avideo:7.5
  • Wwbn » Avideo » Version: 7.6
    cpe:2.3:a:wwbn:avideo:7.6
  • Wwbn » Avideo » Version: 7.7
    cpe:2.3:a:wwbn:avideo:7.7
  • Wwbn » Avideo » Version: 7.8
    cpe:2.3:a:wwbn:avideo:7.8
  • Wwbn » Avideo » Version: 8.1
    cpe:2.3:a:wwbn:avideo:8.1
  • Wwbn » Avideo » Version: 8.5
    cpe:2.3:a:wwbn:avideo:8.5
  • Wwbn » Avideo » Version: 8.6
    cpe:2.3:a:wwbn:avideo:8.6
  • Wwbn » Avideo » Version: 8.7
    cpe:2.3:a:wwbn:avideo:8.7
  • Wwbn » Avideo » Version: 8.9
    cpe:2.3:a:wwbn:avideo:8.9
  • Wwbn » Avideo » Version: 8.9.1
    cpe:2.3:a:wwbn:avideo:8.9.1


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