CVE-2026-43881— WWBN AVideo: Unauthenticated User Enumeration in `objects/users.json.php` via `isCompany` Parameter Flips `$ignoreAdmin = true` and Defeats Admin-Only Listing Guard
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I. Basic Information for CVE-2026-43881
Vulnerability Information
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Vulnerability Title
WWBN AVideo: Unauthenticated User Enumeration in `objects/users.json.php` via `isCompany` Parameter Flips `$ignoreAdmin = true` and Defeats Admin-Only Listing Guard
Source: NVD (National Vulnerability Database)
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 29.0, objects/users.json.php exposes two unauthenticated paths that disclose the full set of registered user accounts. The isCompany request parameter causes the handler to set $ignoreAdmin = true for any non-admin caller (including unauthenticated visitors), which defeats the admin-only guard inside User::getAllUsers()/User::getTotalUsers(). A second path accepts users_id and calls User::getUserFromID() directly with no permission check, producing a single-user oracle. Both paths return id, identification (display name), channel URL, photo, background, and status, plus the total account count. Commit d9cdc702481a626b15f814f6093f1e2a9c20d375 contains an updated fix.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
WWBN AVideo 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 29.0及之前版本存在访问控制错误漏洞，该漏洞源于objects/users.json.php暴露未经验证的路径，可能导致攻击者获取注册用户账户信息。
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
II. Public POCs for CVE-2026-43881
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- https://github.com/WWBN/AVideo/security/advisories/GHSA-6rvw-7p8v-mjfqx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-43881
Same Patch Batch · WWBN · 2026-05-11 · 13 CVEs total
| CVE-2026-43884 | 7.7 HIGH | WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL() |
| CVE-2026-43873 | 7.5 HIGH | WWBN AVideo: Unauthenticated Disclosure of CloneSite `myKey` via Error Echo in `cloneClien |
| CVE-2026-43874 | 7.2 HIGH | WWBN AVideo: Incomplete Fix for YPTSocket autoEvalCodeOnHTML Strip: Unauthenticated Cross- |
| CVE-2026-43875 | 6.8 MEDIUM | WWBN AVideo: Password Hash Leaked in MobileManager OAuth Redirect URL Enables Account Take |
| CVE-2026-43876 | 6.4 MEDIUM | WWBN AVideo: HTML Injection in notifySubscribers.json.php Enables Platform-Branded Phishin |
| CVE-2026-43878 | 6.1 MEDIUM | WWBN AVideo: Reflected XSS in plugin/Meet/iframe.php via Unescaped `user`/`pass` Parameter |
| CVE-2026-43879 | 5.4 MEDIUM | WWBN AVideo: Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check an |
| CVE-2026-43877 | 5.4 MEDIUM | WWBN AVideo: CSRF in userSavePhoto.php Allows Cross-Origin Overwrite of Any Logged-in User |
| CVE-2026-43880 | 5.3 MEDIUM | WWBN AVideo: Unauthenticated Arbitrary Email Sending via sendEmail.json.php Allows Phishin |
| CVE-2026-43882 | 4.3 MEDIUM | WWBN AVideo: Unauthenticated CRLF/ICS Injection in Scheduler downloadICS.php Allows Calend |
| CVE-2026-43883 | 4.2 MEDIUM | WWBN AVideo: IDOR in PayPalYPT agreementCancel.json.php Allows Any Authenticated User to C |
| CVE-2026-43885 | WWBN AVideo: Exposure of Sensitive Information to an Unauthorized Actor and Missing Author |
IV. Related Vulnerabilities
Same product: AVideo
- CVE-2026-43885
WWBN AVideo: Exposure of Sensitive Information to an Unautho - CVE-2026-43884
WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DN - CVE-2026-43883
WWBN AVideo: IDOR in PayPalYPT agreementCancel.json.php Allo - CVE-2026-43882
WWBN AVideo: Unauthenticated CRLF/ICS Injection in Scheduler - CVE-2026-43880
WWBN AVideo: Unauthenticated Arbitrary Email Sending via sen
Same vendor: WWBN
- CVE-2026-43885
WWBN AVideo: Exposure of Sensitive Information to an Unautho - CVE-2026-43884
WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DN - CVE-2026-43883
WWBN AVideo: IDOR in PayPalYPT agreementCancel.json.php Allo - CVE-2026-43882
WWBN AVideo: Unauthenticated CRLF/ICS Injection in Scheduler - CVE-2026-43880
WWBN AVideo: Unauthenticated Arbitrary Email Sending via sen
Same weakness: CWE-306
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Hedera Guardian Authentication Bypass Information Disclosure - CVE-2026-44592
Gradient: Unauthenticated worker on /proto → arbitrary NAR w - CVE-2026-42283
DevSpace UI Server WebSocket CheckOrigin does not validate s - CVE-2025-62619
KVM漏洞：密钥下载接口缺少认证致敏感信息泄露
V. Comments for CVE-2026-43881
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