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CVE-2026-27732— AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php

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.

WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 22.0之前版本存在代码问题漏洞，该漏洞源于aVideoEncoder.json.php API端点接受downloadURL参数并在服务器端获取引用的资源，但缺乏适当的验证或允许列表，可能导致经过身份验证的用户触发对任意URL的服务器端请求，从而引发服务端请求伪造，可能泄露内部服务敏感数据。

AI Predicted 6.5 Difficulty: Easy EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1113 · Screen Capture
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I. Basic Information for CVE-2026-27732

Vulnerability Information
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Vulnerability Title
AVideo has Authenticated Server-Side Request Forgery via downloadURL in aVideoEncoder.json.php
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo is an open source video platform. Prior to version 22.0, the `aVideoEncoder.json.php` API endpoint accepts a `downloadURL` parameter and fetches the referenced resource server-side without proper validation or an allow-list. This allows authenticated users to trigger server-side requests to arbitrary URLs (including internal network endpoints). An authenticated attacker can leverage SSRF to interact with internal services and retrieve sensitive data (e.g., internal APIs, metadata services), potentially leading to further compromise depending on the deployment environment. This issue has been fixed in AVideo version 22.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 22.0之前版本存在代码问题漏洞，该漏洞源于aVideoEncoder.json.php API端点接受downloadURL参数并在服务器端获取引用的资源，但缺乏适当的验证或允许列表，可能导致经过身份验证的用户触发对任意URL的服务器端请求，从而引发服务端请求伪造，可能泄露内部服务敏感数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo < 22.0 -

II. Public POCs for CVE-2026-27732

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III. Intelligence Information for CVE-2026-27732

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Vendor Advisories for CVE-2026-27732 (1)

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-918

V. Comments for CVE-2026-27732

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