CVE-2026-33684 Details
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
A privilege escalation vulnerability has been identified in WWBN AVideo versions prior to 29.0. The issue arises in the signUp API, where unguarded permission parameters allow users who can solve a CAPTCHA to self-assign elevated rights during account registration. The vulnerability exists because the set_api_signUp method in the API plugin accepts user-supplied input for permissions such as emailVerified, canUpload, canStream, and canCreateMeet, and applies them to new accounts without verifying the authenticity of the request with a valid APISecret. As a result, attackers can bypass email verification requirements and gain unauthorized upload, streaming, and meeting creation privileges, undermining administrative controls that restrict these abilities for new users.
Users are advised to update to AVideo version 29.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 15, 2026CISA-ADP
Assessed Jul 16, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/WWBN/AVideo/security/advisories/GHSA-8j8m-p79x-g4jm | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-8j8m-p79x-g4jm | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| WWBN AVideo | <= 27.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 16, 2026 | CVE Modified | CISA-ADP |
| Jul 15, 2026 | New CVE Received | [email protected] |