CVE-2026-40911

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

10.0 (CRITICAL) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS — סבירות ניצול

1% (אחוזון 000) נכון ל-29/7/2026

CWE

CWE-94

מוצרים מושפעים

wwbn: avideo

קישורים

• https://github.com/WWBN/AVideo/security/advisories/GHSA-gph2-j4c9-vhhr ExploitVendor Advisory
• https://github.com/WWBN/AVideo/security/advisories/GHSA-gph2-j4c9-vhhr ExploitVendor Advisory
• https://github.com/WWBN/AVideo/commit/c08694bf6264eb4decceb78c711baee2609b4efd Patch