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CVE-2026-86723— AVideo LoginControl PGP Authentication Bypass via verifyChallenge

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 c3edcc274c389816d434acadac07ee78eaf330c1 安装的 AVideo 存在身份验证绕过漏洞。其 方法对未设置的会话值使用松散比较（ ）而非严格比较（ ）。攻击者仅凭密码即可向 提交空请求，从而绕过 PGP 双因素身份验证，获得完整的已认证访问权限。

CVSS 8.1 · High EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1133.002

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ c3edcc274c389816d434acadac07ee78eaf330c1 affected
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I. Basic Information for CVE-2026-86723

Vulnerability Information
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Vulnerability Title
AVideo LoginControl PGP Authentication Bypass via verifyChallenge
Source: CVE Program / CVE List V5
Vulnerability Description
AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 contains an authentication bypass vulnerability in LoginControl::verifyChallenge() that uses loose comparison (==) instead of strict comparison (===) against unset session values. Attackers with only a password can submit an empty request to verifyChallenge.json.php to bypass PGP two-factor authentication and gain full authenticated access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-86723

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III. Intelligence Information for CVE-2026-86723

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Vendor Advisories for CVE-2026-86723 (2)

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

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-2026-86729 7.4 HIGH WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize
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-287

V. Comments for CVE-2026-86723

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