{"api_version":"1","generated_at":"2026-04-22T23:09:21+00:00","cve":"CVE-2026-40911","urls":{"html":"https://cve.report/CVE-2026-40911","api":"https://cve.report/api/cve/CVE-2026-40911.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-40911","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40911"},"summary":{"title":"WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks","description":"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). 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