CVE-2026-54458

Что произошло

WWBN AVideo is an open source video platform. Versions prior to 29.0 contain a stored DOM Cross-Site Scripting vulnerability in the YPTSocket plugin. Any unauthenticated remote attacker can execute arbitrary JavaScript in the authenticated origin of every administrator currently viewing a page that renders the YPTSocket online-users debug panel. plugin/YPTSocket/getWebSocket.json.php issues a signed WebSocket token to any anonymous caller, and MessageSQLiteV2::onOpen at plugin/YPTSocket/MessageSQLiteV2.php lines 91 and 110 reads the attacker-controlled webSocketSelfURI and page_title query parameters from the WebSocket connection URL with no validation. Both values persist into the in-memory SQLite connections table and broadcast inside the users_id_online array sent to every connected client; on the client, plugin/YPTSocket/script.js::updateSocketUserCard interpolates the broadcast page_title into an HTML template literal that is passed to jQuery $.append(html), which parses attacker bytes into live DOM nodes including with inline event handlers. Successful attackers can can read non-HttpOnly cookies and the CSRF token rendered into the admin dashboard, issue authenticated requests to any admin-only endpoint, exfiltrate the admin dashboard DOM, and chain into any admin-context mutation. When the victim is an AVideo administrator, the attacker turns a single anonymous WebSocket connection into full administrative takeover via the admin's own session. This issue has been patched by https://github.com/WWBN/AVideo/commit/8be71e53ccbe9b84b30870db386fb4d2b11e1c16.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "<= 29.0"
}

CVSS: оценки и векторы

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L

Источники и ссылки

{
  "cwes": [
    "cve",
    "ghsa"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-10-29T09:32:07.641963+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T19:43:24.139941+00:00"
  },
  "scores": [
    "cve",
    "ghsa"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T19:43:24.139941+00:00"
  },
  "affected": [
    "cve",
    "ghsa"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T19:43:24.139941+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-10-29T09:32:07.641963+00:00"
  },
  "references": [
    "cve",
    "ghsa"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T19:43:24.139941+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Появились сведения об исправлении29.10.2026, 18:04
2. Данные обновлены29.10.2026, 12:32
3. Появилась ссылка на PoC28.10.2026, 22:43

Личная заметка и статус

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