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CVE-2026-84476— WWBN AVideo Authentication Bypass via X-Real-IP Header

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及之前版本存在授权问题漏洞，该漏洞源于未验证可信代理即接受X-Real-IP和X-Forwarded-For标头，允许攻击者伪造enforceRateLimit()使用的客户端地址，可旋转标头值绕过登录速率限制并进行无限凭据猜测攻击。

CVSS 7.5 · High EPSS 0.43% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ 29.0 affected
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I. Basic Information for CVE-2026-84476

Vulnerability Information
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Vulnerability Title
WWBN AVideo Authentication Bypass via X-Real-IP Header
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers, allowing attackers to spoof the client address used by enforceRateLimit(). Attackers can rotate the header value per request to bypass login rate limiting and perform unlimited credential guessing attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 授权问题漏洞
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及之前版本存在授权问题漏洞，该漏洞源于未验证可信代理即接受X-Real-IP和X-Forwarded-For标头，允许攻击者伪造enforceRateLimit()使用的客户端地址，可旋转标头值绕过登录速率限制并进行无限凭据猜测攻击。
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-2026-84476

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III. Intelligence Information for CVE-2026-84476

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Vendor Advisories for CVE-2026-84476 (2)

Same Patch Batch · WWBN · 2026-09-01 · 11 CVEs total

CVE-2026-84480 9.8 CRITICAL WWBN AVideo Password Recovery Token Expiration Bypass
CVE-2026-84479 9.1 CRITICAL WWBN AVideo Authentication Bypass via User-Agent Header
CVE-2026-84482 8.8 HIGH WWBN AVideo Cross-Site Request Forgery via get_domain() validation
CVE-2026-84187 8.2 HIGH AVideo on_publish.php Missing Authentication Check via RTMP Callback
CVE-2026-83595 8.1 HIGH AVideo Cross-Site Request Forgery via plugin/API/set.json.php
CVE-2026-84208 7.5 HIGH AVideo User_Location Plugin Unauthenticated SQL Injection
CVE-2026-84478 7.3 HIGH WWBN AVideo Unauthenticated Arbitrary Log File Deletion
CVE-2026-84481 6.9 MEDIUM WWBN AVideo through 30.0 Information Disclosure via MobileManager
CVE-2026-84477 5.4 MEDIUM AVideo Stored XSS via Live Schedule Title Description
CVE-2026-84483 5.3 MEDIUM WWBN AVideo Unauthenticated Password Hash Oracle via encryptPass.json.php

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-290

V. Comments for CVE-2026-84476

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