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CVE-2026-86189— WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.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组织开源的一个视频分享与内容管理平台。 WWBN AVideo 29.0及之前版本存在输入验证错误漏洞，该漏洞源于notify.ffmpeg.json.php文件存在路径遍历问题，攻击者可通过在avideoRelativePath参数中提供调用者选择的路径写入任意位置，并可重放先前发布的密文作为notifyCode令牌绕过身份验证，导致在应用根目录及子目录中写入文件。

CVSS 9.8 · Critical EPSS 0.71% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ 29.0 affected
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I. Basic Information for CVE-2026-86189

Vulnerability Information
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Vulnerability Title
WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.json.php
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo contains a path traversal vulnerability in notify.ffmpeg.json.php that allows unauthenticated attackers to write files to arbitrary locations by supplying a caller-chosen path in the avideoRelativePath parameter. Attackers can replay any previously issued ciphertext as a notifyCode token, which is decrypted but never validated, to bypass authentication and write files to the application root and subdirectories.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN组织开源的一个视频分享与内容管理平台。 WWBN AVideo 29.0及之前版本存在输入验证错误漏洞，该漏洞源于notify.ffmpeg.json.php文件存在路径遍历问题，攻击者可通过在avideoRelativePath参数中提供调用者选择的路径写入任意位置，并可重放先前发布的密文作为notifyCode令牌绕过身份验证，导致在应用根目录及子目录中写入文件。
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 0 ~ 29.0 -

II. Public POCs for CVE-2026-86189

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III. Intelligence Information for CVE-2026-86189

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Vendor Advisories for CVE-2026-86189 (2)

Same Patch Batch · WWBN · 2026-09-05 · 5 CVEs total

CVE-2026-86190 9.1 CRITICAL WWBN AVideo Broken Access Control via videoViewsInfo hash Parameter
CVE-2026-86188 7.2 HIGH AVideo YPTSocket Plugin Unauthenticated Cross-Site Scripting
CVE-2026-86186 6.5 MEDIUM AVideo API Rate Limit Bypass via Bot User-Agent Header
CVE-2026-86187 5.9 MEDIUM WWBN AVideo Weak PRNG Password Generation via External Login

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-73

V. Comments for CVE-2026-86189

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