Cloudanix VulnDB

GHSA-ccq9-r5cw-5hwq

High · 8.1

WWBN AVideo has CORS Origin Reflection with Credentials on Sensitive API Endpoints Enables Cross-Origin Account Takeover

CVSS

8.1

EPSS

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Published

Apr 14, 2026

CISA due date

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The record

The `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim.

Affected packages

Ecosystem Package Introduced Fixed

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