# CVE-2026-41056

> Vulnerability · severity: **HIGH** (CVSS 8.1).

## Description

WWBN AVideo is an open source video platform. In versions 29.0 and below, 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. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.

## Key facts

- **CVE ID:** CVE-2026-41056
- **Published:** 2026-04-21
- **CVSS severity:** HIGH
- **CVSS base score:** 8.1
- **CWE codes:** CWE-942

## Affected products

- `wwbn:avideo`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-41056

## Citation

> AI Analytics. CVE-2026-41056. Retrieved 2026-08-22 from https://api.ai-analytics.org/cve/CVE-2026-41056. Derived from NIST NVD. Licensed CC0.

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