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CVE-2026-88869— AVideo AD_Server Stored XSS via log.php label parameter

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.

通过提交 c3edcc274c389816d434acadac07ee78eaf330c1 的 AVideo 存在一个存储型跨站脚本（Stored XSS）漏洞，位于 AD_Server 插件的 log.php 端点，该端点在存储前未对 label 参数进行转义。未经身份验证的攻击者可以通过 label 参数注入恶意 HTML，而该参数随后在管理员的“广告类型”报表中通过 jQuery 的 .html() 方法未经净化地渲染，从而允许在管理员的浏览器会话中执行任意 JavaScript 代码。

CVSS 9.3 · Critical
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I. Basic Information for CVE-2026-88869

Vulnerability Information
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Vulnerability Title
AVideo AD_Server Stored XSS via log.php label parameter
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the AD_Server plugin's log.php endpoint that fails to escape the label parameter before storage. An unauthenticated attacker can inject malicious HTML through the label parameter, which is later rendered unsanitized in the admin Ad Types report using jQuery .html(), allowing execution of arbitrary JavaScript in an administrator's browser session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-88869

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III. Intelligence Information for CVE-2026-88869

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Vendor Advisories for CVE-2026-88869 (2)

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

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
CVE-2026-88871 4.3 MEDIUM WWBN AVideo CustomizeUser setSubscribers CSRF via GET

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-79

V. Comments for CVE-2026-88869

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