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CVE-2026-33684— AVideo's Privilege AVideo: Escalation via Unguarded Permission Parameters in signUp API Allows Self-Granting Upload/Stream/Meet Permissions

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组织开源的一套视频内容管理系统。 WWBN AVideo 29.0之前版本存在授权问题漏洞，该漏洞源于signUp API中未加保护的权限参数，允许任何能通过CAPTCHA验证的用户在账户注册时自行授予提升的权限，绕过管理员访问控制。

CVSS 5.3 · Medium EPSS 0.33% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo < 29.0 affected
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I. Basic Information for CVE-2026-33684

Vulnerability Information
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Vulnerability Title
AVideo's Privilege AVideo: Escalation via Unguarded Permission Parameters in signUp API Allows Self-Granting Upload/Stream/Meet Permissions
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo is an open source video platform. Prior to version 29.0, Privilege Escalation is possible through unguarded permission parameters in signUp API, which allows any user who can solve a CAPTCHA to self-grant elevated permissions during account registration. The set_api_signUp method in the API plugin accepts emailVerified, canUpload, canStream, and canCreateMeet parameters from user-supplied input and applies them to newly created accounts without verifying that the request was authenticated with a valid APISecret. By self-granting account attributes, attackers can mark their own accounts as email-verified without owning the address (bypassing email-gated functionality) and award themselves upload, streaming, and meeting-creation permissions, circumventing administrator access controls that intentionally restrict these capabilities for new users. This issue has been fixed in version 29.0
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:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
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组织开源的一套视频内容管理系统。 WWBN AVideo 29.0之前版本存在授权问题漏洞，该漏洞源于signUp API中未加保护的权限参数，允许任何能通过CAPTCHA验证的用户在账户注册时自行授予提升的权限，绕过管理员访问控制。
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 < 29.0 -

II. Public POCs for CVE-2026-33684

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III. Intelligence Information for CVE-2026-33684

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Vendor Advisories for CVE-2026-33684 (1)

Same Patch Batch · WWBN · 2026-07-15 · 5 CVEs total

CVE-2026-54458 9.6 CRITICAL AVideo: Unauthenticated Stored DOM Cross-Site Scripting via Per-Client Metadata Broadcast
CVE-2026-50182 6.1 MEDIUM AVideo Has Unauthenticated Reflected XSS via $_GET['search'] in YouTubeAPI Gallery Paginat
CVE-2026-50183 4.7 MEDIUM WWBN AVideo: Stored XSS via Hostile YouTube Video Title in AVideo YouTubeAPI Gallery Secti
CVE-2026-49279 WWBN AVideo: Stored XSS via autoEvalCodeOnHTML Bypass in MessageSQLite WebSocket Handler (

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-862

V. Comments for CVE-2026-33684

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