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CVE-2026-82645— AVideo Unauthenticated Stream Credential Disclosure via Forgeable Token

Quick assessment

Affected
WWBN AVideo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AVideo（当前提交 e01e41ecc 及更早版本）通过 端点暴露了流媒体凭证。当请求中包含 参数时，该端点会绕过 访问控制以及再流（restream）所有权校验，从而在未进行身份验证的情况下，返回任意再流配置的 和 （即 YouTube、Facebook、Twitch 等外部平台的流媒体凭证）。 该 本质上只是一个整型 ID 的 加密结果，不具备用户绑定、有效期或身份验证标签。由于加密方案采用 AES-256-CBC，使用固定 IV 且无消息认证码（MAC），加之 可接受任何以数字开头的字符串，未经身份验证的

CVSS 8.6 · High
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I. Basic Information for CVE-2026-82645

Vulnerability Information
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Vulnerability Title
AVideo Unauthenticated Stream Credential Disclosure via Forgeable Token
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo (current commit e01e41ecc and earlier) exposes stream credentials through the plugin/Live/view/Live_restreams/getLiveKey.json.php endpoint. Supplying a 'token' request parameter waives both the Live::canRestream() access gate and the restream ownership check, causing the endpoint to return any restream's stream_key and stream_url (credentials for external platforms such as YouTube, Facebook, and Twitch) without authentication. The token is merely encryptString() of an integer id with no user binding, expiry, or authentication tag. Because encryption uses AES-256-CBC with a deterministic IV and no MAC, and because intval() accepts any string beginning with a digit, an unauthenticated attacker can forge valid tokens using the public encryption oracle in view/url2Embed.json.php, disclosing arbitrary users' stream credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo - -

II. Public POCs for CVE-2026-82645

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III. Intelligence Information for CVE-2026-82645

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Vendor Advisories for CVE-2026-82645 (2)

Same Patch Batch · WWBN · 2026-08-30 · 6 CVEs total

CVE-2026-82644 7.5 HIGH WWBN AVideo Brute-force Rate Limiting Bypass via Missing User-Agent
CVE-2026-82648 7.1 HIGH WWBN AVideo SSRF Filter Bypass via NAT64 Hex Address
CVE-2026-82643 6.5 MEDIUM WWBN AVideo Unauthenticated Rate Limit Bypass via preauthorize.json.php
CVE-2026-82646 6.1 MEDIUM WWBN AVideo Unauthenticated Reflected XSS via url2Embed.json.php
CVE-2026-82647 6.1 MEDIUM WWBN AVideo Cross-Site Request Forgery via sendEmail.json.php

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-347

V. Comments for CVE-2026-82645

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