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CVE-2026-88871— WWBN AVideo CustomizeUser setSubscribers CSRF via GET

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（截至提交 c3edcc274c389816d434acadac07ee78eaf330c1，master 分支，2026-08-23 发布）中存在跨站请求伪造（CSRF）漏洞，位于 CustomizeUser 插件的 端点。该脚本从 中读取 和 参数，并调用 ，但未强制要求 POST 请求或有效的 CSRF 令牌。由于 仅对针对 的 POST 请求生效，且该变更操作未经过 或 的检查，因此跨域 GET 请求即可成功触发变更。 一个未认证的远程攻击者若能让已登录的管理员加载一个精心构造的页面（

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-88871

Vulnerability Information
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Vulnerability Title
WWBN AVideo CustomizeUser setSubscribers CSRF via GET
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 (master, 2026-08-23) contains a cross-site request forgery vulnerability in the CustomizeUser plugin's plugin/CustomizeUser/setSubscribers.json.php endpoint. The script reads users_id and ExtraSubscribers from $_REQUEST and calls User::setExtraSubscribers() without requiring a POST request or a valid CSRF token; autoCSRFGuard() is applied only to POST requests to *.json.php, and the mutation does not pass through ObjectYPT::save()/isUntrustedRequest(), so a cross-origin GET succeeds. An unauthenticated remote attacker who induces a logged-in administrator to load a crafted page (for example an <img> tag pointing at the endpoint) can forge the ExtraSubscribers count displayed on any user's channel. The CustomizeUser plugin is enabled by default, and no patched version was available at the time of reporting.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo 0 ~ c3edcc274c389816d434acadac07ee78eaf330c1 -

II. Public POCs for CVE-2026-88871

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III. Intelligence Information for CVE-2026-88871

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Vendor Advisories for CVE-2026-88871 (2)

Same Patch Batch · WWBN · 2026-09-10 · 12 CVEs total

CVE-2026-88869 9.3 CRITICAL AVideo AD_Server Stored XSS via log.php label parameter
CVE-2026-88866 8.7 HIGH WWBN AVideo LoginControl Stored XSS via User-Agent Header
CVE-2026-88867 8.7 HIGH WWBN AVideo Stored XSS via Category Name and Icon Class
CVE-2026-88868 8.7 HIGH AVideo LiveLinks Stored XSS via title and description fields
CVE-2026-88865 8.1 HIGH AVideo Missing Authorization via getRestream.json.php
CVE-2026-88876 7.5 HIGH AVideo PlayerSkins seo.php Missing Authorization Password-Protected VOD
CVE-2026-88874 7.5 HIGH AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 Authentication Bypass
CVE-2026-88870 7.1 HIGH WWBN AVideo LoginControl PGP Key CSRF via GET Request
CVE-2026-88873 7.1 HIGH WWBN AVideo Cross-Site Request Forgery via logArchive.json.php
CVE-2026-88872 7.1 HIGH AVideo CustomizeUser setPassword.json.php CSRF
CVE-2026-88875 4.3 MEDIUM AVideo Incomplete API Sanitization Information Disclosure

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-352

V. Comments for CVE-2026-88871

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