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CVE-2026-82643— WWBN AVideo Unauthenticated Rate Limit Bypass via preauthorize.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存在授权问题漏洞，该漏洞源于plugin/Live/api/preauthorize.json.php接受GET请求中的凭据且无速率限制，可能导致未经身份验证的攻击者反复提交正确凭据，触发无上限的两因素确认邮件，并对用户账户进行持续的密码猜测攻击。

CVSS 6.5 · Medium EPSS 0.34% · P27

Possible ATT&CK Techniques 1 AI

T1006 · Direct Volume Access

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo any affected
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I. Basic Information for CVE-2026-82643

Vulnerability Information
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Vulnerability Title
WWBN AVideo Unauthenticated Rate Limit Bypass via preauthorize.json.php
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo contains an unauthenticated credential submission vulnerability in plugin/Live/api/preauthorize.json.php that accepts credentials over GET without rate limiting. Attackers can submit correct credentials repeatedly to trigger uncapped two-factor confirmation emails and perform sustained password guessing attacks against user accounts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
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存在授权问题漏洞，该漏洞源于plugin/Live/api/preauthorize.json.php接受GET请求中的凭据且无速率限制，可能导致未经身份验证的攻击者反复提交正确凭据，触发无上限的两因素确认邮件，并对用户账户进行持续的密码猜测攻击。
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 - -

II. Public POCs for CVE-2026-82643

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III. Intelligence Information for CVE-2026-82643

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Vendor Advisories for CVE-2026-82643 (2)

Same Patch Batch · WWBN · 2026-08-30 · 6 CVEs total

CVE-2026-82645 8.6 HIGH AVideo Unauthenticated Stream Credential Disclosure via Forgeable Token
CVE-2026-82644 7.5 HIGH WWBN AVideo Brute-force Rate Limiting Bypass via Missing User-Agent
CVE-2026-82648 7.1 HIGH WWBN AVideo SSRF Filter Bypass via NAT64 Hex Address
CVE-2026-82646 6.1 MEDIUM WWBN AVideo Unauthenticated Reflected XSS via url2Embed.json.php
CVE-2026-82647 6.1 MEDIUM WWBN AVideo Cross-Site Request Forgery via sendEmail.json.php

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-82643

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