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CVE-2026-86729— WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize

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 e01e41ecc，目前无已修复版本）在 中暴露了一个未文档化的第二个登录入口 。与 不同，后者通过 强制实施“每 5 分钟最多 10 次尝试”的速率限制，而 执行相同的凭据校验，却对任何客户端都没有任何节流机制，从而允许针对任意账户（包括管理员账户）进行无限次的远程密码猜测攻击。 此外，该端点还充当了“凭据预言机”（credential oracle）：无论密码正确与否，它都返回 “Invalid credentials” 的消息；但响应体中的 字段会泄露认证后的身份（成功时为

CVSS 7.4 · High

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ 29.0 affected
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I. Basic Information for CVE-2026-86729

Vulnerability Information
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Vulnerability Title
WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo through commit e01e41ecc (no patched version available) exposes get_api_preauthorize in plugin/API/API.php as a second, undocumented login path. Unlike get_api_signIn, which enforces a rate limit of 10 attempts per 5 minutes via checkRateLimit(), get_api_preauthorize performs the same credential check with no throttling for any client, allowing unlimited remote password guessing against arbitrary accounts, including admin. The endpoint also acts as a credential oracle: it returns the message "Invalid credentials" for both correct and incorrect passwords, while the users_id field in the response body discloses the authenticated identity (users_id:1 on success, users_id:0 on failure), and a correct password establishes a session cookie that remains usable for authenticated API requests. Together these issues permit unauthenticated brute-force account takeover.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo 0 ~ 29.0 -

II. Public POCs for CVE-2026-86729

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III. Intelligence Information for CVE-2026-86729

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Vendor Advisories for CVE-2026-86729 (2)

Same Patch Batch · WWBN · 2026-09-08 · 12 CVEs total

CVE-2026-86723 8.1 HIGH AVideo LoginControl PGP Authentication Bypass via verifyChallenge
CVE-2026-86720 8.1 HIGH WWBN AVideo Missing Authorization via resendRestreamer.json.php
CVE-2026-86722 8.1 HIGH AVideo Authentication Bypass via SQL Cache Invalidation
CVE-2026-86728 7.5 HIGH AVideo through 29.0 Unauthenticated Disclosure via epg.json.php
CVE-2026-86727 7.5 HIGH AVideo through 29.0 Information Disclosure via stats.json.php
CVE-2026-86721 7.5 HIGH AVideo through c3edcc274c Authorization Bypass via Session Cookie
CVE-2026-86718 7.1 HIGH WWBN AVideo Cross-Site Request Forgery via deleteHistory.json.php
CVE-2026-86725 7.1 HIGH AVideo SocialMediaPublisher Missing Authorization via add.json.php
CVE-2026-86726 6.5 MEDIUM AVideo through 29.0 Information Disclosure via restreamsActive.json.php
CVE-2026-86724 6.5 MEDIUM AVideo YPTWallet saveBalance.php Cross-Site Request Forgery
CVE-2026-86719 5.4 MEDIUM WWBN AVideo CustomizeUser Cross-Site Request Forgery Session Hijacking

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-86729

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