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CVE-2026-86186— AVideo API Rate Limit Bypass via Bot User-Agent 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API未能对带有机器人User-Agent标头的请求执行速率限制，可能导致攻击者绕过包括登录暴力破解保护在内的八个受保护操作，从单个IP地址对任意账户进行无限密码猜测尝试。

CVSS 6.5 · Medium EPSS 0.30% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ 29.0 affected
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I. Basic Information for CVE-2026-86186

Vulnerability Information
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Vulnerability Title
AVideo API Rate Limit Bypass via Bot User-Agent Header
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo API fails to enforce rate limits when clients send a bot User-Agent header, allowing attackers to bypass all eight protected operations including login brute-force protection. Attackers can send requests with a bot User-Agent to disable rate limiting and perform unlimited password guessing attempts against any account from a single IP address.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
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API未能对带有机器人User-Agent标头的请求执行速率限制，可能导致攻击者绕过包括登录暴力破解保护在内的八个受保护操作，从单个IP地址对任意账户进行无限密码猜测尝试。
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-2026-86186

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III. Intelligence Information for CVE-2026-86186

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Vendor Advisories for CVE-2026-86186 (2)

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

CVE-2026-86189 9.8 CRITICAL WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.json.php
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-2026-86187 5.9 MEDIUM WWBN AVideo Weak PRNG Password Generation via External Login

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-307

V. Comments for CVE-2026-86186

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